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Do-it-yourself CPU Water Cooler

Foss writes "This article on EIMod.com shows a (very) cheap and effective way of getting that usually-expensive water cooling system that many of us have thought about. There are some pretty pictures too :)"

207 comments

  1. cheap and easy... by doooras · · Score: 5, Funny

    just cover your hardware in saran wrap and dump ice in the box. works like a charm to keep it cool.

    1. Re:cheap and easy... by Anonymous Coward · · Score: 0

      i get this strange tingling feeling from all the electricity going through my body. ah. did you not say to dump ice into your case after the motherboard is covered in saran wrap? whoops, forgot the power supply. =)

    2. Re:cheap and easy... by Anonymous Coward · · Score: 3, Funny

      Just seal up the case with silicone and fill it with PCB. You should be able to get PCB for nothing at a toxic waste dump. No pumps or fans required, the oil will circulate in the case through convection. This is quiet and safe, since PCB doesn't burn and is pretty much non-toxic. It does cause cancer in rats though, but rats are sensitive creatures and can get cancer from anything...

    3. Re:cheap and easy... by Anonymous Coward · · Score: 0

      you foring toad. he said "hardware" not "motherboard." Jesus i'm glad MOST /. readers can actually read.

    4. Re:cheap and easy... by Anonymous Coward · · Score: 0

      u are not an anonymous coward

  2. Wow by spike+hay · · Score: 1, Flamebait

    I got a water cooling sytem. OCed my 2 gig to 2400.

    --
    If you don't understand any of my sayings, come to me in private and I shall take you in my German mouth.
    1. Re:Wow by Anonymous Coward · · Score: 0

      How is that flamebait? I just remarked how I have that.

  3. String and rubber bands? by qurob · · Score: 2, Funny


    This looks reliable!

    http://www.eimod.com/overclocking/rob/wc_2_ok/pi ct ures/finaltie.jpg

    Also, look how dusty the case is. This guy must live in a barn!

    1. Re:String and rubber bands? by i+like+your+eyes · · Score: 1

      Also, look how dusty the case is Case? I didn't happen to see a case. But who cares. I'm sick of my computer components being all crowded together in a little black box.

      --

      There's no emoticon for what I'm feeling!
    2. Re:String and rubber bands? by cscx · · Score: 1

      I wouldn't trust that set up as far as I could throw it; and yes, that includes having the monitor attached to it when it's thrown! ;0

    3. Re:String and rubber bands? by ncc74656 · · Score: 2

      I liked the multiple attempts at getting a decent seal from the hoses...the author must not have heard of hose clamps. Also, some baffles inside the block to direct flow ought to make it more effective.

      --
      20 January 2017: the End of an Error.
    4. Re:String and rubber bands? by Grab · · Score: 3, Informative

      Yeah, pretty grim.

      For the benefit of that guy, if he's reading...

      1) Most of your water will go straight in and straight out again without doing much cooling. A heatsink should force the water to go all the way round the heatsink - try adding some baffles inside the box to improve that.

      2) Have you never heard of hose clips? 50c each and 100% reliable at clamping off flexible hoses without leakage.

      3) Get some heatsink compound between the heatsink and the processor. Without it, a fair chunk of the heat is never even getting to the heatsink, so the whole point of having a nice efficient heatsink is wasted.

      Grab.

    5. Re:String and rubber bands? by Foss · · Score: 1

      The whole point of the article is that Rob's learning as he goes along. The next water cooling attempt will have channels inside the block, and much more reliable block-to-pipe joins using proper hose clamps and a tapered edge to the in and out-flow pipes on the block itself.

      We're also going to try using mineral oil, and a possible immersion-cooling system, within the next month or so. Watch this space :)

      If you or anyone else would like to give us some pointers on this, feel free to email us - news@eimod.com. :)

      --
      You've got mail. Pattern baldness. - Crow
    6. Re:String and rubber bands? by Foss · · Score: 1

      We are reading. :)

      Thanks for all your comments. If you'd like to help out, drop us an email - news@eimod.com.

      --
      You've got mail. Pattern baldness. - Crow
  4. Instructions that you don't want to see by hij · · Score: 5, Funny
    use a double knot to stop the string coming undone and use only cotton string!

    These are the sorts of instructions I don't like to see in a mod! At least it doesn't mention chewing gum...

    --
    Believe nothing -- Buddha
    1. Re:Instructions that you don't want to see by Budgreen · · Score: 1

      or duct tape for that matter

      --
      The greatest right given is the right to be wrong...
    2. Re:Instructions that you don't want to see by ShadeEagle · · Score: 1

      Hey! Don't be dissin The Handyman's Secret Weapon!

      Seriously though, a watercooling solution using duct tape is something that only Red Green would do ^_^

      Although Duct Tape is good enough for astronauts... it's policy to have a roll of good ole Duct Tape on space missions...

    3. Re:Instructions that you don't want to see by Amazing+Quantum+Man · · Score: 2

      Duct Tape is like the Force. It has a light side, and a dark side, and it holds the universe together.

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
    4. Re:Instructions that you don't want to see by Rogerborg · · Score: 2
        • use a double knot to stop the string coming undone and use only cotton string!
        These are the sorts of instructions I don't like to see in a mod!

      Uh, I stopped taking it seriously after the "You can buy a hammer in any DIY store", and the use of rubber bands instead of, ooh, what's those things you use to clamp hoses...? Hose clamps! (aka jubilee clips). It's an interesting little hack, but if you need to be told where to buy a hammer or soldering iron, you're probably better off not mixing water and electricity.

      --
      If you were blocking sigs, you wouldn't have to read this.
    5. Re:Instructions that you don't want to see by Anonymous Coward · · Score: 0

      Believe it or not, there's a dork out there who's reading that for the very first time.

    6. Re:Instructions that you don't want to see by netsharc · · Score: 1

      Hey, I'm no dork!

      --
      What time is it/will be over there? Check with my iPhone app!
    7. Re:Instructions that you don't want to see by Anonymous Coward · · Score: 0

      You got dorkiness backwards. People who talk about duct tape are the dorks. Non-dorks have better things to talk about.

  5. Cheap and effective? by SimplyCosmic · · Score: 3, Insightful


    Sure, for the ten minutes that the article mentions that the pump runs before overheating.

    1. Re:Cheap and effective? by bbh · · Score: 1

      And he clearly didn't post the pictures of the first 5 times he probably tried it and sprung a leak :P

      bbh

    2. Re:Cheap and effective? by Wingchild · · Score: 3, Funny

      It also doesn't mention Duct Tape, the universal constant, so I question the veracity of the report.

    3. Re:Cheap and effective? by Anonymous Coward · · Score: 0

      Ok, so now all he has to do is water cool the pump...

  6. At last.... by g0rath · · Score: 1

    a way to get that AthlonXP to overclock. I wouldn't pay for one of those alrady made jobs. I would rather do it myself. At least someone has given a direction.

    Next stop, fried CPU....

  7. Nice job.... by knownzero · · Score: 2, Funny

    ...but the rubber bands on the tubes just scares the hell out of me. Did this guy graduate from the Russian Navy or something? I think the shrink tubing would have worked if he'd have gotten the kind with the mastick (glue type substance) in it. That would have sealed it off great and it's still inexpensive enough not to break him.

    --
    quod me nutrit me destruit
    1. Re:Nice job.... by BLAMM! · · Score: 2

      I want to know why the guy didn't just use hose clamps to attach the plactic tubing? Gee, it works in your car for fuel, coolant, brake fluid, etc. Or was that too easy? Doesn't say much for the rest of his ideas.

    2. Re:Nice job.... by Jonny+290 · · Score: 1

      Show me a fuel line that's clamped with hose clamps. A simple URL is all that's necessary.

      Hose clamps are 99 percent reliable, but that 1 percent could translate into 10,000 randomly exploding cars each and every year.

      --
      Hey Taco! Looks like you're using the "infinite monkeys and typewriters" scheme to generate Ask Slashdots again...
    3. Re:Nice job.... by Anonymous Coward · · Score: 0

      You can clamp a fuel line with a URL?

    4. Re:Nice job.... by BLAMM! · · Score: 2

      Look under your hood. Check out your fuel filter. My bet is it has a hose clamp on either side of it.

  8. Looks Safe by Anonymous Coward · · Score: 0

    I like the rubber bands and string holding the thing together. And the 10 minute pump :) I guess testing stability of you overclocked processor will be easier if you only have 10 minutes. I have seen a bunch of water cooling kits linked from hardocp.com which were much nicer, and well much more expensive. I guess you get what you pay for.

    1. Re:Looks Safe by sketerpot · · Score: 1

      The guy who wrote the article is working on a newer model. It will likely include things like hose clamps, a better pump (that's just a matter of getting a better pump, not any fault with the design), perhaps (and I would recommend this) zig-zag pieces of metal to make the water go around the block more, and various other refinements. This is an ongoing thing, not a one-time thing. And it is quite possible that you could get more than you pay for if this gets improved a lot.

    2. Re:Looks Safe by Foss · · Score: 1

      Finally, someone who's actually read the entire article!

      You're spot on there though. Channels for the water, hose clamps, arctic silver paste, a better pump and some mineral oil will all be used in our third attempt.

      Thanks for reading :)

      --
      You've got mail. Pattern baldness. - Crow
  9. one of the better ones that i've seen.... by SGDarkKnight · · Score: 3, Interesting

    was at the London Smackdown tournament that I went to. This guy had to carry around an extra cooling pouch with all the stuff built into it. There are 3 pics of it here, here, and here. The third pic is the best view of the pouch and the first two show you the in'erds on the computer.

    --

    ...A no smoking section in a restaurant is like having a no peeing section in a swimming pool...
  10. Liquid Nitrogen Cooling by Davak · · Score: 5, Interesting

    Why go to all this trouble? This is obviously the way of the future. :)

    1. Re:Liquid Nitrogen Cooling by ShadeEagle · · Score: 1

      Gee, how many times does a 3M product come into the discussion?

      This link refers to Liquid Nitrogen-cooled Fluorinert(tm) FC-40 (Link points to 3M's page for this)...

      An expensive yet cool (pardon the pun ;-p) way to keep a system at low temperatures.

    2. Re:Liquid Nitrogen Cooling by MrSeb · · Score: 1

      He's talking about liquid-nitrogen cooling the mobo, while it is immersed in a pool of inert liquid... and he details what's submersed, and what's not...

      Submersed:
      ABIT BE6-2 Motherboard (QJ BIOS)
      Creative 32MB TNT2 Ultra
      Infineon 128MB PC133
      Celeron 366


      Not included in submersion
      IBM HD 7200rpm UDMA66
      300w ATX PSU


      Heehee.

  11. Eeek! by JimPooley · · Score: 4, Funny

    The words 'cheap', 'water' and 'computer' used in close proximity do not inspire confidence or an incentive to try this mod out.
    Then I read about the cotton...!

    --

    "Information wants to be paid"
    1. Re:Eeek! by fabiolrs · · Score: 1

      agreed! :)))

      he could have used super-glue instead! :))

      --
      Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
      http://www.morroida.com.br
  12. Water Cooler? by Dead+Penis+Bird · · Score: 1

    My CPU's always wanted a place to stop and chat while getting a cool drink.

    Hopefully it will increase productivity.

    Ohhh...water cooling for CPU's? My bad.

    --

    If I weren't nailed to the penis, I'd be pushing up the daisies!

    1. Re:Water Cooler? by hndrcks · · Score: 2

      You know, I thought a CPU was a pretty inefficient way to cool water too!

      --
      Everyone will start to cheer when you put on your sailin' shoes.
  13. Has anyone just stuck the board in the fridge? by sdo1 · · Score: 4, Interesting
    Just sticking the CPU board into a mini-fridge would be cheap and would probably work pretty well. Plus any extra space could be used to keep your beer cold.

    -S

    --
    --- What parts of "shall make no law", "shall not be infringed", and "shall not be violated" don't you understand?
    1. Re:Has anyone just stuck the board in the fridge? by SGDarkKnight · · Score: 2, Informative

      yeah, a few people have... these were the first to come to mind though.

      --

      ...A no smoking section in a restaurant is like having a no peeing section in a swimming pool...
    2. Re:Has anyone just stuck the board in the fridge? by ivan256 · · Score: 2

      Most refrigerators aren't designed to run continuously. The one you linked to consumes ~100 watts, and could probably only cool a system that runs on less then 80 watts. Even then, the continuous running would probably destroy the refrigerator pretty quickly.

    3. Re:Has anyone just stuck the board in the fridge? by DickPhallus · · Score: 1

      Most refrigerators aren't designed to run continuously.

      I shut my refrigerator down nightly, how about you?

      --

      --
      Some weasel took the cork out of my lunch.
    4. Re:Has anyone just stuck the board in the fridge? by Junta · · Score: 2

      Actually, my fridge spends most of the time off, and I'm pretty sure yours does too (unless you leave the door open all the time or something). The cooling in a fridge only kicks in as necessary (when you here it make a low buzzing sound as opposed to silent). A small fridge probably couldn't cool a computer fast enough to matter (particularly around the processor itself).

      --
      XML is like violence. If it doesn't solve the problem, use more.
    5. Re:Has anyone just stuck the board in the fridge? by ivan256 · · Score: 1

      Nope, but mine did come with one of those new fangled thermostat thingies that magically turns the compressor on only when it starts to get warm inside.

    6. Re:Has anyone just stuck the board in the fridge? by Grumpman · · Score: 1

      Nope. At lease not anywhere there is humidity. I tried this in Houston, Tx and even with two 3 cubit foot dehydrators (system was sealed and a internal fan run for 12 hours prior to fridge being turned on), the board would run fine for about 36 hours and then lock. I blame it on the internal humidity. I'm still working on a solution.

      Any suggestions?

    7. Re:Has anyone just stuck the board in the fridge? by nooboob · · Score: 0

      Yes, put it in a frost free freezer. No Humidity there, right?

    8. Re:Has anyone just stuck the board in the fridge? by jred · · Score: 1

      Plastic bag? I seem to remember someone using dry ice & a styrofoam cooler & they used a bag, tied/taped around the cables.

      --

      jred
      I'm not a mechanic but I play one in my garage...
    9. Re:Has anyone just stuck the board in the fridge? by sketerpot · · Score: 1

      They mention that they are using an unusually powerful fridge. I still agree that this probably wouldn't be practical.

  14. Heh by Pope+Slackman · · Score: 2

    Does anyone else think it would have been infinitely cooler
    if he had used dental floss to hold the heatsink on instead of plain ol' string?

    C-X C-S

    1. Re:Heh by Anonymous Coward · · Score: 0

      Isn't it C-x C-c ?

  15. Wow that was painless by pr0f3550r · · Score: 0

    Cool, he was actually able to get +50 MHz over traditional methods after all of that string and H2O.
    Simply Amazing!!

  16. Interesting...but why? by SnAzBaZ · · Score: 1

    Does anyone else think this is a bit of an effort for a novelty system that's more likely to ruin your computer than provide an efficient cooling technique...and it doesn't even look sexy :(

  17. finally.. by nick-less · · Score: 0, Troll

    I could overclock my C64 to 2MHZ, yeah

    1. Re:finally.. by Anonymous Coward · · Score: 0

      You already can. Look here:

      http://www.privat.kkf.net/~milo.mundt/

  18. Aah by ch-chuck · · Score: 2

    I'm waiting for the DIY liquid nitrogen version...

    --
    try { do() || do_not(); } catch (JediException err) { yoda(err); }
  19. What cools the pump, an underclocked '286? by Tall_Rob · · Score: 4, Funny

    Okay, so his water pump is only designed to run for a max of 10 minutes before overheating. Since overclocked CPUs generate heat, an underclocked CPU must be able to absorb heat, right? RIGHT? Why not slap an old 286 onto the pump, underclock it to run at, oh, say, 2 Hz (not mHz, but plain ol' Hz) and the 286 will absorb all the excess heat off the pump! Voila! :-)

    Or should he just get a water cooler to put on the pump, which would in turn need a water cooler for ITS pump, which would need a water cooler for ITS pump, which would . . . oh, wait, this is infinite nesting, isn't it? :-P

    1. Re:What cools the pump, an underclocked '286? by markmoss · · Score: 4, Informative

      No, what he needs (and no doubt he is aware of it), is a better pump. Also proper tubing fittings, hose clamps, baffles inside the waterblock to direct the flow so all of it gets cooled, ears on the block to attach spring-clip heatsink holders, and so on. But the cheap 10-minute pump is good enough for checking out whether he's on the right track -- and he claims his budget was 77 pence, which I think is about $1 US. Aquarium pumps run continuously and aren't too expensive, but on that budget you use what you already have...

      I do hope that he used thermal grease -- the article doesn't say one way or the other, but even a perfect heat sink can't cool well if the heat has trouble getting _to_ it.

      One thing that did kind of bother me: "Although it seems that copper would be best suited for making a water block, I'm not entirely convinced without physical proof." It scares me that anyone who has to ask would be doing this! Copper is indeed the best material, unless you are on a NASA cost plus 10% contract, then use gold and increase your profit. ;-) Copper is resistant to corrosion and has the second highest heat transfer rate (by volume) of any material available in bulk. Gold is better and aluminum is worse on both counts. When aluminum is used instead of copper, they are trading off a little effectiveness for considerable savings in cost and weight; if you are using water, weight better not be an issue, and for a do-it-yourself project you'd spend a lot more trying to solder aluminum than copper will cost...

  20. Ugly - wife would not approve by Anonymous Coward · · Score: 1, Funny
    Well, some of us could never get something as ugly as that in the house.

    I have to screen all the computers I buy with my wife. If it doesn't fit with the decoration, it's not coming in.

    1. Re:Ugly - wife would not approve by Anonymous Coward · · Score: 0

      it _can_ fit your decoration! just be sure to hook up the water circuit to a tropical fish aquarium...

  21. Parents by KDENCE · · Score: 1

    Yeah, but if you get a water leak, your screwed 'cause your parents are sure gonna miss that cooler and defintely gonna miss that computer!

  22. Convenience by Anonymous Coward · · Score: 1, Funny

    No longer will I be forced to move to talk with coworkers around the water cooler. They will come to me, bwahaha.

  23. Geez by mcrbids · · Score: 3, Interesting

    With the money he spent on this "cheap" water-cooler, he couldv'e PURCHASED A 1GHZ CPU!

    Oh, and it'd work for more than 10 minutes too!

    The things a guy will do...

    --
    I have no problem with your religion until you decide it's reason to deprive others of the truth.
    1. Re:Geez by the+grace+of+R'hllor · · Score: 1

      He paid 77 pence for it. Please send me a 1GHz CPU for 77 pence.

    2. Re:Geez by Kallahar · · Score: 2

      3 pence dumbass, that's less than a US dollar. Please let me know where to find a 1GHz CPU for $1.

      Travis

    3. Re:Geez by realdpk · · Score: 2

      Pricewatch has many links to 1GHz CPUs.

      Go ahead and donate that dollar to some charity in my name. Thanks!

  24. Remote Monitor hack... by Anonymous Coward · · Score: 0

    I guess the next amazing hack on the site will be the imfamous 'remote monitor' a 17" monitor and a telescope.

  25. He should talk to a plumber by stoolpigeon · · Score: 1

    First off IANAP but this guy should talk to one.

    He should take a look at some aquariums as well. That would take care of finding a pump that can run continually w/out overheating. I would think it has to be much cheaper than pumps built for remote controled submarines.

    Some small compression fittings would take care of the tube problem. Maybe some o-rings instead of rubberbands on the outside. I can think of a few ideas that would involve more than just pressure on the outside of the tubing. (That's why he had such a tough time stopping the leaks- he tried to tackle it all from the outside)

    Very nice box- a little tweaking and it would be very applicable for anyone.

    .

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    1. Re:He should talk to a plumber by Anonymous Coward · · Score: 0

      Aquarium pumps, pump air not water, you would tear up that pump pretty quick running water through it.

    2. Re:He should talk to a plumber by stoolpigeon · · Score: 1

      As well as not being a plumber, I am not an aquarium expert.

      But I do know that the filter in my aquarium pumps water. It's quite clever, it has a little impeller in a tube that is driven by magnets- so no leaks.

      It cranks a lot of water through the filtering system. So some aquarium pumps may not be appropriate but I know of least one that would work.

      .

      --
      It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
  26. Not bad by rblancarte · · Score: 1

    And not that I don't trust this guy, but homemade is a bit scary. Maybe it is just me, but leaking is a HUGE issue, and I would want to be about 200% sure for something I am making myself.

    Still, these designs look good, and with a better pump, I would love to see some long term tests with this.

    RonB

    --
    It is human nature to take shortcuts in thinking.
  27. Why water, try oil. by bluGill · · Score: 4, Insightful

    Water conducts electrisity. Well, pure water doesn't, but pure water will eat metal until it does conduct. That means you have to keep your water carefully sererate from everything else.

    By contrast, oil doesn't conduct, doesn't disolve metal. Fill your case with oil, and you have better cooling than air, and much easier to deal with. (Note, oil isn't as good as water for heat capacity, but it is still better than air and has all the other advantages)

    1. Re:Why water, try oil. by MacDork · · Score: 2, Funny

      Exactly! And when IA-64 arrives, you'll have a dual purpose computer/deep fryer!! George Forman Grill, eat your heart out!

    2. Re:Why water, try oil. by kippy · · Score: 1

      I worked at Cray a little while ago and they used this cool liquid teflon stuff as a coolent. The rumour was that you could drink the stuff and still live. I never got the chance.

    3. Re:Why water, try oil. by farnham · · Score: 1

      The problem with oil is it's higher viscosity (requiring better pumps) and it's harder to get the waste heat out of it.

      You need some kind of closed loop and a radiator with active cooling for oil to work.

      --
      pending committee review
    4. Re:Why water, try oil. by ZaneMcAuley · · Score: 2

      Sure, subbing the computer in oil would work wonders. But I am not soo sure about the DVD drives being submerged in oil though :D

      --
      ----- Whats wrong with this picture? http://www.revoh.org:1234/whatswrong
    5. Re:Why water, try oil. by Amazing+Quantum+Man · · Score: 2

      Wasn't that stuff a synthetic blood plasma?

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
    6. Re:Why water, try oil. by blair1q · · Score: 2

      The last indigestible lubricant to be used as a food additive was Olestra.

      Liquid Teflon could only be orders of magnitude more effective in waterproofing your shorts.

      --Blair

    7. Re:Why water, try oil. by Anonymous Coward · · Score: 0

      For reasons of viscosity and its attendant demands on pumps, I am thinking 100 proof vodka is the way to go.
      Prosit!!

    8. Re:Why water, try oil. by djtack · · Score: 1

      Water conducts electrisity. Well, pure water doesn't, but pure water will eat metal until it does conduct.

      Not quite true. Even pure water will ionize slightly, due to the molecule's polar nature. Propylene glycol would probably be a better choice. And for christ's sake, why was this kid using shrink tubing, zip ties, and rubber bands? Hasn't he ever heard of a hose clamp? US$0.20 at the local hardware store...

    9. Re:Why water, try oil. by Foss · · Score: 1

      There's an article on the same site that goes into immersion cooling - the motherboard is basically dumped in a bowl full of vegetable oil. :)

      --
      You've got mail. Pattern baldness. - Crow
  28. Other liquids by Ed+Avis · · Score: 2

    Why water? Why not mineral oil or something that's certain not to conduct electricity? It might not take heat away quite as fast as water does but it should still be a lot better than air.

    I wonder whether liquid nitrogen is feasible. That would be a great cooling system for a Beowulf cluster: remove the cases, hard disks etc and just stack motherboards really close together in a big bathtub filled with cold liquid.

    --
    -- Ed Avis ed@membled.com
    1. Re:Other liquids by Foss · · Score: 1

      Good point. This was only Rob's second attempt at a home-made water cooling block. Our next will involve water cooling around a heatsink which should help dissipate the heat much further.. Mineral Oil would be a great idea too. Thanks for the suggestion :)

      --
      You've got mail. Pattern baldness. - Crow
    2. Re:Other liquids by pkesel · · Score: 2, Informative

      You'll need a much more expensive pump to push mineral oil, or about anything but water. The extra viscosity will likely cause the pump to overheat. And the seals and such may decay with other materials.

      --
      - Sig this!
    3. Re:Other liquids by Anonymous Coward · · Score: 1, Insightful
      Liquid nitrogen is probably too cold. Most commercial semiconductors are only rated to 0 C. Specially selected units can go much lower of course.

      When you get semiconductors too cold, they are subject to weird feedback effects, and destructive spurious oscillations (probably because the ohmic value of parasitic damping resistance is lowered, increasing circuit Q which leads to oscillation).

    4. Re:Other liquids by GigsVT · · Score: 1

      There was an article on here with some people running a P4 at something like 3.5Ghz using a metal cup of Liquid nitrogen as a heat sink.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    5. Re:Other liquids by tps12 · · Score: 2
      Why not mineral oil or something that's certain not to conduct electricity?

      Distilled water is an insulator. If you drop your toaster into your bath, and you are bathing with distilled water, you will be fine. It is the ions in solution that carry charge.

      --

      Karma: Good (despite my invention of the Karma: sig)
    6. Re:Other liquids by Ed+Avis · · Score: 1

      But 100% pure distilled water is difficult to get hold of and keep pure. Even skinflakes falling into it from the air would probably add enough salt to make it conduct. The same applies if the toaster falls in while bathing :-(.

      --
      -- Ed Avis ed@membled.com
  29. yeah right... by Anonymous Coward · · Score: 0

    Duct tape and bubble gum a cool mod does not maketh.

    String and water a cool mod do maketh?

    I beg to differ kind sir.

  30. Do slashdot editors read the stories they link to? by linux_warp · · Score: 2, Insightful

    Did anyone else read the part that the thing only runs for 10 minutes? Oh what a bargain. Buy all the watercooling stuff and have it work for 10 minutes at 1ghz. Woohoo.

  31. Re: Why water? by Wingchild · · Score: 4, Funny

    Water cooling requires that the water, passing nearby a heat source, absorbs the heat and carries in on to a place where it can be safely transferred into the surrounding environment. The old Second Law, Energy can neither be created nor destroyed, etc etc.

    So why would we opt for water, which would be a less than optimal coolant? Because hot water makes *coffee*. Imagine! You could have a water-cooled server *and a coffee machine* all in the same rackmount!

    The possibilities are endless.

  32. Chewing Gum? by rblancarte · · Score: 1

    That is the MacGyver Case Mod. It is used for heat transfer. Leaks are sealed up with Chocolate and you hold the whole thing together with duct tape (of course).

    RonB

    --
    It is human nature to take shortcuts in thinking.
  33. Rubber bands? by heneon · · Score: 1

    In my experience rubber bands get weak, especially in warm places, and eventually break. I would not like to have a computer running when the "insulation" breaks and drowns the motherboard. Then again, this thing is supposed to take the heat out so maybe it's cool enough.

  34. A Case with HOSES!!! by rblancarte · · Score: 1

    Dude, that is WAY hardcore. I like the design. It would have been nice had they taken a picture of the innards of that little black bag. What kind of speed did he get with that thing?

    RonB

    --
    It is human nature to take shortcuts in thinking.
    1. Re:A Case with HOSES!!! by Anonymous Coward · · Score: 1

      Actually, thats MY CASE!!! awesome!! a shoutout on slashdot. What a small world this is :)
      The system is a duron 600, overclocked to 1100, it no longer resides in a carryon bag, but is now in a toolbox. A lot more spacious, and easyer to carry. In case your wondering, pictures of inside the bag never turned out well at all, but now since its an openable toolbox, lots more room for higher quality pump, fans, PSU, and picture room :) ill post some new ones when i get a chance.

  35. Personal Experience by quantax · · Score: 3, Informative

    As someone who has built his own homemade watercooler, this setup is very jury-rigged and definately not recommended for any sort of serious long term cooling. The copper-tube inlets need to be replaced w/ brass fittings to avoid leakage, and the rubber bands should be replaced with cheap and much more effective band clamps. This waterblock design is not effective water-distrobution wise either as the water is not forced to flow through out the entire design. This would let the side furthest the inlets get hot due to poor water flow. An open chamber is only good for small waterblocks. Lastly, using thread to attach a waterblock to the cpu is ghetto as hell. Either quickly engineer a heatsink clamp yourself, or just look up a guide on the net for this, its pretty simple. Watercooling is one of those things that can be done many different ways, but this particular method is a little more 'amature' than is recommended to put on any piece of equipment that you value. If you are going to take the time to make your own watercooling, also take the time to make sure its engineered right.

    --
    "What can a thoughtful man hope for mankind on Earth, given the experience of the past million years? Nothing." -Bokonon
    1. Re:Personal Experience by quantax · · Score: 2, Insightful

      Oh yea, I forgot to mention, skimping on these sort of things for money is dumb because by using jury-rigged methods such as this, you usually end up spending MUCH more in hardware replacement costs. All it takes is a couple drops and could easily blow every component attached to the mobo (which is pretty much everything). Watercooling is not the sort of thing you cheap-out on since the consequences can rack up in cost pretty quick.

      --
      "What can a thoughtful man hope for mankind on Earth, given the experience of the past million years? Nothing." -Bokonon
    2. Re:Personal Experience by Rogerborg · · Score: 2
      • using thread to attach a waterblock to the cpu is ghetto as hell

      You say that as though it's a bad thing...

      • If you are going to take the time to make your own watercooling, also take the time to make sure its engineered right.

      I hear you, but bear in mind this is written for people who need to be told that "You can purchase a hammer in any DIY shop". Besides, there's that whole "guts beats hard work" mentality that's infested our psyche. How do you know who the Bad Guy is in a film? Easy, he's the one working out. The Good Guy is out partying, but it's OK, he'll beat the Bad Guy in the fist fight because, shucks, he's got guts.

      Uh, back on topic, that's pretty much the same attitude we're seeing here. Not "how you can do it right," but "here's how little you can do". Hacking for slackers. I like hacking (in all senses), but I prefer to see people hacking new toys, not just making shoddy replicas of commercial kit. I'd rather read about an innovative hack that's too hard for me to replicate than a shoddy hack that there's no point in me replicating, because it's inferior to a stock commercial product in every way. :(

      --
      If you were blocking sigs, you wouldn't have to read this.
    3. Re:Personal Experience by Foss · · Score: 1

      Try the mouse-mod on the same site. Rob goes into detail about electronics and other stuff that I really couldn't care less about, but overall it's a pretty easy to follow article/set of instructions.

      --
      You've got mail. Pattern baldness. - Crow
  36. Agree by rblancarte · · Score: 1

    So this poses the question - where can one find links to professionally built water cooling kits? I have been interested in getting one for my computer, but exhaustive google searches have only turned up a few. What is really out there.

    For that matter, how about some links to some good overclocking sites with some solid information?

    RonB

    --
    It is human nature to take shortcuts in thinking.
    1. Re:Agree by Carnivore · · Score: 1

      Google for "copper block". It will give you all kinds of links.

  37. Another Water Cooling Project Link by fabiolrs · · Score: 1

    http://www.crazypc.com/articles/watercool.htm

    I prefer this one! :))

    --
    Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
    http://www.morroida.com.br
  38. Home made Oil Cooling by fabiolrs · · Score: 1

    http://www.overclockers.com/tips653/

    --
    Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
    http://www.morroida.com.br
  39. Kinky mod! by david_e_v · · Score: 0

    Man, I had the idea of these modders building nice boxes full of colours and lights, or setting up some clever Peltier systems for overclocking.
    There is no review on the articles on that site?

  40. should be : (s core: +5, funny) by Thud457 · · Score: 1

    This guy has some entertaining mods that you may enjoy!

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  41. look at what I found on eimod.com by fabiolrs · · Score: 1
    --
    Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
    http://www.morroida.com.br
    1. Re:look at what I found on eimod.com by stoolpigeon · · Score: 4, Insightful

      These guys have some time on their hands.

      That's cool though- they are just thinking up ideas and trying them out. They are not worrying too much about convention apparently.

      How many great ideas started that way?

      More than I could name.

      .

      --
      It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    2. Re:look at what I found on eimod.com by fabiolrs · · Score: 1

      They have time and courage!! :)) we wouldnt put our mobos/cpus inside oil just for the hell of it, would we? :)))

      --
      Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
      http://www.morroida.com.br
    3. Re:look at what I found on eimod.com by Anonymous Coward · · Score: 0

      Who are these guys?? More time/balls than brains?? Get a life guys -- you are causing more concern than necessary....

  42. With link now by fabiolrs · · Score: 1
    --
    Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
    http://www.morroida.com.br
  43. Watercooling works great by xtal · · Score: 5, Informative

    I run a watercooled machine as my primary work box. It's great, and the noise savings were incredible. No more whirrrrrr. Fits snugly into a standard mid tower case.

    I have a page up with all the details of contsruction for you who are interested. I've been running it for a few months, 24/7, and there have been no problems whatsoever. I took a few additional precautions, but the system as been moved around several times without any difficulties whatsoever and I highly recommend it to others who are interested.

    --
    ..don't panic
    1. Re:Watercooling works great by bsdparasite · · Score: 1
      Looks like you did a much better job than the other person. Excellent work! I would love to try this on my box.

    2. Re:Watercooling works great by itomato · · Score: 1
      Your mod is of much higher quality. Hell, it's a better article than many of the 392 articles on building a water cooler written in the last coupla years.

      You'd think that folks would quit re-inventing the wheel after a while..

    3. Re:Watercooling works great by gl4ss · · Score: 1

      i agree. www.overclockers.com has also wide variety of articles.

      i gotta get a better block :\ i'm using this drilled aluminum block i bought like 2y ago for 5 euros :D

      AIR COOLING IS FOR VW'S!

      --
      world was created 5 seconds before this post as it is.
    4. Re:Watercooling works great by skuenzli · · Score: 1

      On your webpage (which is great, btw), you describe seeing sediment in your coolant. Water Wetter will produce sediment as well. I believe it's either grey in color and flaky or copper in color and flaky. I can't remember which. It usually freaks car people out when they find it in their coolant and think they've blown a head gasket or something. It should not be too hard to verify the exact nature of the sediment.

      Regards,
      Stephen

    5. Re:Watercooling works great by xtal · · Score: 3, Informative

      Heya.. the sediment only appeared when I did the first test run and drain, and it was obviously copper burrs (although there was some black stuff that wasn't identifyable - this could have been water wetter percipitate). I was concerned about the larger burrs because they look like they could have damaged the magnetic impeller it uses.

      However, the box is on 24/7 since then and hasn't had so much as a hiccup :). I can highly recommend it as a upper-end mod for those who want silent running.

      Thanks for the compliments on the page, too :-).

      --
      ..don't panic
    6. Re:Watercooling works great by Wordplay · · Score: 1

      Nice setup.

      re: Arctic Silver, I wouldn't dump huge blobs on your traces, but it is practically non-conductive. That was the big deal with it in the first place...previous metal-based compounds were really conductive, whereas non-conductive silica-based compounds weren't very effective.

      My install was a little messy, too, and there's a light dusting of AS2 on my Athlon traces (like you say, it's nigh-impossible to wipe off without submerging the chip in isopropyl). I haven't gotten any clock/voltage/instability issues from it, so I'm pretty sure I'm not shorting anything.

      Geo

  44. Re:Moderation - A Warning from History by Anonymous Coward · · Score: 0

    SO your a jew????

  45. Re:Hello, my name is Luke. by Anonymous Coward · · Score: 0

    at least leave me blood parasites

  46. seems like a pretty complex way to make awaterbloc by Hadlock · · Score: 3, Informative

    my friend had me mill one for him for a science experiment. actually , ended up about 5 of them. he bought 2x2x1" aluminum blocks. i milled two holes through (one end to the other), side by side. he tapped them, and attached plumbing devices to the newly threaded areas. The other method was to bore four holes - two holes one one side that went 80% through, and 2 holes on the adjacent side that also went 80% through. tapped, and attached appropriate connectors. no leaks to patch. since the tops were flat, he also took the old heat sink + fan, removed the fan, and used that to dissipate evem more heat.

    i never got the results back, but if anyone's interested, i can get the data to you, along with pics and more details.

    --
    moox. for a new generation.
  47. with link now by fabiolrs · · Score: 2, Informative
    --
    Fabio - Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/Universe
    http://www.morroida.com.br
  48. terrible hacks.. by Anonymous Coward · · Score: 0

    Rubber bands? Cotton thread? Please.. this is just lame.

  49. Water cooler huh? by karmawarrior · · Score: 1

    Will all the memory chips huddle around it on Monday mornings discussing Sunday night's episode of Sienfeld?

    Sorry, I'll just stop now.

    --
    KMSMA (WWBD?)
  50. An awful lot of trouble by trailerparkcassanova · · Score: 1

    to go from .950GHz to 1GHz. Why not just blow $38.00 and buy a 1GHz CPU? Geez, and what a bodge!! The damn pump would only run for 10 minutes.

  51. all he needs by paradesign · · Score: 1
    all he needs to make this 'kewl' is to add LEDs everywhere, i here that LEDs combined with case windows equals like 200mhz.

    this is as bad as reicer cars that have stickers and scoops to 'boost' horsepower.

    --
    I want 2D games back.
  52. Wow! by T3kno · · Score: 1

    This on definately wins the whisky tango (white trash) award. If only he would have shocked himself to death, he'd be up for a darwin.

    --
    (B) + (D) + (B) + (D) = (K) + (&)
    1. Re:Wow! by rjamestaylor · · Score: 1

      If anyone is in a position to identify WT...

      --
      -- @rjamestaylor on Ello
  53. Hose Clamps by north.coaster · · Score: 2

    Rubber bands? You gotta be kidding!

    A much better way to mate the hose to the copper tubing is to use a hose clamp. These can be obtained from any DIY or auto parts store, and cost less than a dollar each.

    /Don

  54. Watercooler or trash!!??! by medscaper · · Score: 1
    This seems like absolute junk to me. No offense, but any CPU or box you hook this up to would be toast in minutes. I know, I toasted one with this same technique a few months ago looking for a cheap solution.

    The problems with this system are numerous.

    1. The pump will only work for 10 minutes at a time. Great if you power up once a day to check email and then power down again.

    2. The surface of the cooling block is absurd. If you don't have good contact, you're out of luck.

    3. The cotton thread will stretch and contract, and eventually the "double knot" will break or become worthless. Savage an old CPU fan connection bracket if you must, but don't do THIS. Please.

    4. The leaks would be horrendous and fast. The rubberbands are susceptible to the heat of the block, and will break immediately.

    I'm not trying to be a jerk. I did try this unsuccessfully a few months ago, and then sucked it up and shelled out $90 at Fry's for some moderately good quality parts - a block, some real pipe fittings, and a good eHeim pump. It's been running 24-7 for some months now, with absolute perfection. It's quiet, fast, and the tests I run (every month) when I shut down the pump just to see what would happen, result in a nice, quick shutdown upon CPU core overheat (takes about 5 minutes). Distilled, clean water thrown on a running motherboard had no effect, so I've used that. No oil, no antifreeze, no water wetter. It's all worked out great.

    Just shell out the $90 or $100, spend some time, and do it right.

    --
    Any sufficiently well-organized Government is indistinguishable from bullshit.
    1. Re:Watercooler or trash!!??! by Duckz · · Score: 1

      I believe this project was ment to have fun, not serious.

      --
      Todd

  55. Koolance by trelaneopn · · Score: 1

    I own a manufactured liquid cooled case. The performance is excellent and at 350 wtih powersupply, was really fairly reasonable. If you're interested in liquid cooling the case has performed in a superb manner. (keeping the 2000+ sitting it it at around 120f. When I get the new 200w cooling unit I expect it to drop even lower, as the fluid temp is still only 10f above room temp.

    In answer to the obvious question, no I'm not planning on overclocking, because unlocking the palamino clock is too much trouble. for those interested in the case I purchased it can be found at Koolance I got the 602 which is a modded antec case, that antec claims is a soho fileserver case.

    --
    a bit more about me http://www.advogato.org/person/trelane/ or my private page http://trelane.net
  56. reactionism by prizzznecious · · Score: 1

    Why in the world was this article posted? Did I miss something?

    This "31337 m0d" runs for approximately 10 minutes before the pump overheats. That's really useful if you're only interested in watching your boot sequence.

    And anyway, all watercooling systems are DIY mods. That's the whole fucking point. This was truly a waste of time and bandwidth.

    --

    visit the hwky website for a lyrical genius infusion.
  57. connect the fish tank directly to the pc by einreb · · Score: 1

    picture a warm overclocked pc sitting next to a fishtank that needs a heater to keep the temperature up.

    there's a couple of options...

    run the pumped filter water from the tank to the cpu radiator

    or

    somehow (there's the catch) mount a heatsink to the side of the tank with the fins going into the tank and the cpu mounted to the dry outside

    --
    sik
  58. Re: Why water? by bluGill · · Score: 1

    Ahh. I forget that some people accually like to drink that stuff known as coffee. Since I cannot stand the stuff, the corrolation never occured to me.

  59. sowing string by Anonymous Coward · · Score: 0

    First of all, a great idea on a CPU that is overclocked, sowing string, I am sure it will last forever. When looking at the pictures it becomes clear why noone uses it.
    Second, I'd never show my face in shop where I can buy sowing string.
    Third, the usage of that string seems more to because of limitation of skills than a 1337 idea.

  60. Hydroponic CPU's by muerte24 · · Score: 4, Interesting
    i built a water CPU cooler for $20 out of pocket costs. of course, that doesn't count the stuff i stole from work. :) it's a machined copper slug, a reservoir, and a $20 aquarium pump.

    if you turn the thing on with a cool reservoir, the CPU temp stays below 76F. but after being on for 10 hours, the reservoir temperature raises to about 113F due to my lack of money to buy a real radiator. so my equilibrium CPU temp with an Athlon XP 1600 is 123F, when the fan it came with ran it at 145F.

    you can see pictures and stuff here.

    granted, copper slugs and machining equipment and "free" swagelock (and peltiers!) is not something everyone has, but use what you got, right?

    hope someone finds it useful or interesting.

    muerte

  61. Re:Moderation - A Warning from History by Anonymous Coward · · Score: 0

    SO your a jew????

    Your use of "your" is incorrect here. Perhaps you meant to use "you're" -- a contraction of "you are" -- instead.

    The revised sentence reads:

    SO you're a jew????

    Thank you,

    Spelling & Grammar Nazi

  62. McGuyver would not be amused by z_gringo · · Score: 1

    In fact, he would probably hunt them down and beat them senseless with a huge copper tubing.

    --
    -- -- Warning. Do not stare directly at the sun.
  63. Even Better Water Cooling Solution! by dbretton · · Score: 2

    After trying many different Peltier solutions, I became frustrated at how cumbersome they are and how painful they are to install.

    Finally I came up with a water cooling solution that was easy, simple, and , best of all, completely free!

    The picture isn't so good (it's a little hard to make out the details of the PC), but I'm sure everyone can do this mod too!

  64. Talk about ghetto.... by NeoSkandranon · · Score: 1

    I'm not touching any computer mod that has me using thread to secure a heatsink to a processor...

    I don't see how this is newsworthy? sure it worked..for ten minutes. If you're going to post a watercooling article can't you at least find one that is a semi-permenant solution?

    --
    If you can't see the value in jet powered ants you should turn in your nerd card. - Dunbal (464142)
  65. Even easier method? by FFFish · · Score: 1

    I'm pretty sure one could use a "Celestial Seasonings" tin can and a healthy dollop of silicone sealant to replace the copper box.

    --

    --
    Don't like it? Respond with words, not karma.
  66. Ouch! by Verteiron · · Score: 5, Funny

    "1 - 3 grams of solder should be enough, but it's always best to buy excessive amount just to cover yourself."

    Maybe it's just me, but wouldn't covering yourself with solder hurt like hell?

    --
    End of lesson. You may press the button.
    1. Re:Ouch! by Anonymous Coward · · Score: 0

      Only if you melt it first.

    2. Re:Ouch! by therealmoose · · Score: 0

      Well, you'd want a water cooler for yourself first. Of course, you'd have to buy that one commercially which would kind of defeat the purpose...

  67. God... by AnimeFreak · · Score: 2

    I find this mod really pathetic, mainly due to how he attached the cooling system to the processor.

    And how is there a benefit? My Celeron-2 600 sits at 36 degrees celcius and it is only cooled by a fan on the processor and two fans in the case. If attaching a water cooling system like his to mine only causes a 10 degrees difference in temperature, why should I care? Unless it got to the point of being 15 or 20 degrees cooler, I can give a rat's ass about it.

    Yet putting my system in liquid freon would be an option. How does a non-conductive cold liquid sound for cooling a system? :)

  68. What's the point? by Wakko+Warner · · Score: 2

    Besides the "it's cool!" factor (which it really isn't anymore, since everyone's been there and done that by now), why on earth would anyone water-cool their system nowadays? The difference between an Athlong XP 1500 and an Athlon XP 1800 is $14, and even the fastest Pentium 4 CPUs are reasonably affordable (to say nothing of the absolute cheap asking price for the fastest Athlons.)

    I guess what I'm getting at is this: why bother with any of this overclocking nonsense anymore? What on earth can it possibly buy you nowadays, other than a voided warranty and a fried CPU?

    - A.P.

    --
    "Remember when the U.S. had a drug problem, and then we declared a War On Drugs, and now you can't buy drugs anymore?"
    1. Re:What's the point? by xtal · · Score: 3, Interesting

      Watercooling can completely eliminate system noise. In addition, in my experience, my system was much more stable when watercooled than when it wasn't. I run simulations that can run for a day or more, and stability issues can present themselves - no more with the watercooler.

      There's two reasons for you right there :). And, you can usually overclock to as high as the motherboard will allow as a side benefit.

      --
      ..don't panic
    2. Re:What's the point? by pknut · · Score: 1

      It's all about pushing the performance envelope, on the components that you have, to it's limits. Water cooling is not going to be reliable without spending a large amount of money, but it's still good for playing around with, and extracting those last few MHz from that CPU.

      Overall, I guess it's all about being a geek, and wanting to play and prod systems till they're running at their absolute fastest. If you can't understand it, then it's very difficult / impossible to explain why people would want to do such things.

      Funny thing is, "car geeks" do the same thing, "chipping" their cars and adjusting timings on-the-fly with in car laptops. There was some story about this recently, but I'm too lazy to look.

  69. why not combine both? by sheean.nl · · Score: 1, Interesting

    use a normal fan to cool down your CPU and issolate the air-stream and connect it to a water-cooling-system-stuff-or-something, the issolating will reduce the noice, and because you can move the air-stream to any place u like, the water-cooler can be put away from the electronics and create a save system.

    So, who's going to patent this? this technique will be called überfan(TM), and will be copyrighted by aww.. forget it.

    --

    If at first you don't succeed, then sky diving definitely isn't for you.
  70. interesting by shawnmelliott · · Score: 1

    This is interesting. BUT. when you consider the cost of the materials, the tools needed, the time it will take to complete this the guy could have done a small contract job for some joblo company and made the money needed for a better system.

  71. Re: Why water? by markmoss · · Score: 2

    Water is the optimal coolant, when only physical properties are considered. It's reasonably low viscosity (easy to pump), and has an extremely high heat capacity. The only problems are that it is rather corrosive and electrically conductive, so leaks are really bad news, but the heat capacity is so much higher than most non-conductive fluids that engineers will often pick it anyhow. Other choices: Oil will take a stronger pump, thicker tubing, and bigger radiator, because you have to move more fluid at higher viscosity. Certain chloroflourocarbons are good enough at cooling and entirely safe to spill on live electronics, but they're also pretty much illegal nowadays. And distilled water is much cheaper than any alternative fluid...

  72. Interesting, but by blankmange · · Score: 2, Funny

    He didn't really mention how many different pieces of hardware he ruined during this experiment, or what happens to his system at 11 minutes (when the cooling system fails), or my favorite question of all -- WHY? There are several water-cooling solutions on the market now, plus dozens of any other kind of cooling solution (Peltier, massive fans, etc). I understand the need to tinker and constantly tweak the equipment, but this guy must be really obsessive... Already noted here several times, but any cooling solution that works only for ten minutes at a time doesn't seem that great/newsworthy. BTW, won't cotton thread burn, create a lot of smoke, catch fire, and melt the entire lot of hardware -- oh, yeah -- it is water cooled, so you also have an internal fire-suppressant system.... Now I understand -- kewl!!

    --
    ...we are from the government - we are here to help...
  73. This is just part of the solution.. by willy_me · · Score: 2
    For it to really work you would also need a radiator to cool the water. A fan blowing air over the rad would also be required for small rads.

    The way it's currently implemented there is really no point. Good air heat sinks remain close to room temperature so they'll cool just as well as this water cooler. To actually improve the cooling you need so either cool the water or utilize a peltor with the water cooler to drop the temp below room temperature.

    Willy

  74. You don't need a radiator... by Exedore · · Score: 4, Interesting

    ...to shed heat from the coolant. Just run the water coming from the cpu to a shower head (or similar) suspended above an open reservior. The water is dispersed by the shower head (increasing surface area) and cooled by the air as it falls into the container below.

    Granted, this approach requires an open reservoir outside of the case, but it's simple, effective, and cheap.

    Bonus: it can also replace those stupid "Sounds of Nature" tapes that people use for background noise at bedtime.

    --

    I take drugs seriously.

    1. Re:You don't need a radiator... by itomato · · Score: 1

      One of the goals of many who water cool is lower overall noise. I would think that a shower head would increase it.

      The idea of ambient cooling of the water is really cool though. How about flowing it over a conductive plate? It doesn't need to be expensive. Some salvaged material should do. Hell, just about everything necessary for a water cooler should be available at a junk yard or similar place where cool stuff goes to die.

    2. Re:You don't need a radiator... by Muerte23 · · Score: 2, Interesting
      the problem with evaporative cooling is the increased hardening of the water. you would indeed lose lots of heat to evaporation, and the CPU would run super cool, but as more of the water evaporates and leaves behind all of its minerals, the think would start to get really crusty.

      then you would have to clean out the whole thing with CLR or some crap, and it would be a huge pain. and good system should be as closed as possible while still allowing for some thermal expansion of trapped air.

      the trick is to find a good radiator, CHEAP. or free. maybe a heater core from a car from a junkyard? maybe the heat exchanger from a junked air conditioner?

      the hard part is not getting the heat from the CPU to the water, but getting the heat from the water into the air.

      muerte

    3. Re:You don't need a radiator... by b0bby · · Score: 1

      Or you could run it into one of those little desktop rock fountains you can get - hell, they even have a pump & are designed to run 24/7. Hmmm...

    4. Re:You don't need a radiator... by nooboob · · Score: 0

      Just use distilled water, no minerals. Or alcohol.

    5. Re:You don't need a radiator... by jred · · Score: 1

      Hey, that's a good idea. You should go post that to some case mod/cooling boards (other than /.) and report back w/ pics when someone does it :)

      --

      jred
      I'm not a mechanic but I play one in my garage...
    6. Re:You don't need a radiator... by jred · · Score: 1

      Plus you get the added bonus of saying, "I need to go check on my bong cooler now". :)

      --

      jred
      I'm not a mechanic but I play one in my garage...
    7. Re:You don't need a radiator... by RFC959 · · Score: 2

      Speaking of ambient cooling: has anyone tried using a pumpless water block (optionally fitted with a fan)? I'm picturing just a big copper box full of water, to cool by convection. All it would need is to be effective enough to not need a fan for total silence - I'm not into gonzo overclocking. Hey, if Macs can do it...

  75. Easier Way by toblak · · Score: 2, Funny

    This might be a silly idea, but ... Why not buy a mini fridge, large enought to hold a computer, and a few choise beverages. Cut some holes for cables. And you are good to go.

  76. Snipes by John+Guilt · · Score: 2, Interesting

    1.) Don't heat the solder. heat the metal (with a small blowtorch). Maybe some acid flux first.

    2.) Use caulk to seal the hose to the piping.

    3.) Look around (larger Chinese groceries are good) for pre-formed metal trays, some of which have mtal lids that could be caulked shut.

  77. Koolance rules! Forget the hacks, do it right. by Dr.+Ion · · Score: 1

    I've been running a Koolance PC2-601 case for a month now and love it. It's an Antec SX1030 with a fully-integrated watercool system. No milk jugs and aquarium pumps here, and a full-size radiator that can handle anything, and a CLOSED water system.

    I'm oc'ing an Athlon 1800 XP to 2100 and it's holding 36c at the lowest fan speed. It's also cooling the MB chip, Nvidia chip, and two hard drives. Amazing. The Koolance is so madly overbuilt it's hilarious. Two pumps for backup, a sweet control panel, and no ungainly hoses sticking out of the case.

    Best of all, the system itself is almost silent! I can't hear the pumps at all, and the top fans spin so slow as to be a whisper. The power supply fan drowns out the whole thing.

    Tired of messing with crazy hoses and, uh, cotton string? Pony up the whopping $275. Given that a regular SX1030 is almost half that, it's a hell of a deal. The smaller version is even cheaper. I'm sick of hearing that pro watercooling is expensive or difficult. I finally have a fast machine that doesn't sound like a vacuum cleaner, and it's not like I broke the bank.

  78. This story actually teaches a lot... by jhiv · · Score: 5, Informative

    This story actually teaches a lot about how not to build a water-cooling system for a CPU.

    Some specific observations:
    1. The low delta T (temperature difference) for the water going through the system is a sure indication of low efficiency. The most likely culprit is poor contact between the block and the CPU. Thin sheeting was used, and ripples are clearly visible in the pictures. The block is probably only touching in a few places and there is no mention of using thermal grease. A stiffer bottom plate was clearly called for.
    2. As mentioned elsewhere, hose clamps should have been used. (String? Let's not go there...)
    3. There is no radiator to dump the heat back to the environment. The heat transfer from the surface of the tank is probably not sufficient to keep the temperatures low. The radiator should be after the pump, to dump the heat from the pump also.
    Perhaps the story should have been posted with the "laugh, it's funny" icon.

    BTW, I prefer Indium foil as the thermal gasket between the CPU and heat sink, not thermal grease. Unfortunately, Indium is usually as expensive as gold.
    1. Re:This story actually teaches a lot... by WolfWithoutAClause · · Score: 2

      > 1. The low delta T (temperature difference) for the water going through the system is a sure indication of low efficiency.

      It can indicate that, but it's not a sure indication; in fact it can be a good thing!

      The temperature difference of the water is inversely proportional to flow rate- big flow rate gives low delta-t. So it depends on how powerful his pump is. A more powerful pump will mean that the chip stays cooler, provided that the inlet temperature doesn't rise.

      Clamps; check

      A reservoir may well be all that is required, provided the temperature stays well within spec.

      Indium? I think I start to see a pattern to your comments. ;-)

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
  79. Re:People! by Anonymous Coward · · Score: 0

    Irony: See above post.

  80. It's called fluorinert by mr.+roboto · · Score: 2
    And it's made by 3M. From a chem industry website:

    Fluorinert liquids are a family of clear, odourless perfluorinated fluids that were developed to meet the demanding and diversified requirements of direct contact electronic applications.

    Fluorinert liquids have a number of important properties:


    Very high dielectric strength

    Wide range of boiling points

    Thermally and chemically stable

    Compatible with sensitive materials

    Very low toxicity

    Non-flammable

    Zero Ozone Depletion Potential (ODP)


    It's really cool stuff, and it's starting to find applications all over the place. For example, it turns out that fluorocarbons absorb oxygen really well, so a colloid of fluorinert is used as an artificial blood. It really is the ideal solution for the problem of processor cooling, but I can't for the life of me figure out from the web how to get some and how much it would cost. There shouldn't be any problems with overclockers getting their hands on it, since with the non-toxicity and inertness, it's not particularly hazardous stuff.

    1. Re:It's called fluorinert by crawling_chaos · · Score: 2

      Unless I'm gravely mistaken, one of the flourinert compounds was used in the primary cooling loop of the Cray Y-MP supercomputers. It went through a heat exchanger to a secondary cooling loop of Freon, which then either went to a big radiator on the roof, or a smaller one immersed in a laboratory chilled water supply. Cray techs had to be certified as refrigerator repairmen as well as electronics techs.

      --
      You can only drink 30 or 40 glasses of beer a day, no matter how rich you are.
      -- Colonel Adolphus Busch
  81. Why not longer pipes? by Tomato3 · · Score: 1

    Instead of wasting some much time on the rubber tubing to copper pipe connection, why not just extend the copper pipes to such a distance (would be very far espially with some bends in them) that any leak wouldn't have damaged the system anyway? True this would have to be fixed in order for a long term solution, but this was very much just a test anyway.

    --
    Beware of he who would deny you access to information, for in his heart he dreams himself your master. -Commissioner Lal
  82. condensation? by outx992 · · Score: 1

    Just a question, but has anyone who has ever used this type of cooling ever experienced any types of condensation problems on the outside of their cooling equipment? I would think with the variations in temperature that there would be some moisture buildup.

    1. Re:condensation? by aaarrrgggh · · Score: 1

      Condensation can only happen if the water temperature is less than the ambient wet-bulb temperature. (If the relative humidity is 100%, the wet bulb temperature is the same as the dry bulb temperature, or "normal" temperature.)

      These systems are all taking water that is quite hot (methinks 140F), and letting it cool to ambient temperature only, so there is no danger of condensation. (Unless, of course, the water resivor is outside or in the fridge.)

      I'm not sure what the critical temperature is at the CPU, but a 50F delta between supply and return with water is fine, as long as there is a reasonable flow...

  83. I am planning on running 10 home built 1U's by Anonymous Coward · · Score: 1, Interesting

    using dual AMD's and for cooling I am planning on using water blocks on the CPU and the system board chips.

    I will custom build my own blocks, use at least 4 medium sized pumps with any two having enough capacity for the system to work and a radiator with the top resevoir being a waterfall like the old Crays. :) A large diameter fan that moves slow will circulate air throught the radiator.

    Between 2 and 4 feet of water pressure will allow the water to naturally flow through the water blocks then down to the lower resevoir where the pumps force the water up through the radiator and out over the waterfall.

    A thick plate of copper will be used as the base and a box very much like the main part of the heat sink being reviewed here as the top of the block. Although I am thinking that I can use a slightly thicker copper and hammer it out into the top so that there are no corner copper joints. There will be internal fins to help conduct heat and direct the water flow optimally. I want to scavenge the mounting clips from old fans from a salvage shop I know. They have stacks of old CPU heat sinks.

    Compression fittings will be used on the blocks and every where else where a plastic fitting meets a copper fitting. The copper tubing will all be soldered.

    The only fans will be on the 10 fans on the heat sinks inside the closed case, so they shouldn't be too loud. Plus the half rack is going to be out in the garage. I am wondering if I can mount a larger diameter fan to the power supplies and remove the too small noisy fan from the inside of the power supplies.

    Finally I am going to put a large slow moving fan on the top of the half rack. It's a totally enclosed rack with front and back glass doors, so it's nice. An air filter in the bottom will keep out the dust.

    When all is said and done I will have a beowulf cluster of 10 dual AMD's. I also intend to install Mosix on all the boxes too. I will be able to achieve quite high frame rates on video rendering, which is the main reason I am going to be doing this. There will also be dual 80GB hard drives on each box for a total of 1.6TB of journalled file space. Most of this will be used in a fun project I have that to calculate primes.

  84. Ice water would provide near 0 C operation by Aging_Newbie · · Score: 1

    Getting the CPU down to freezing might allow you to overclock a bit more - at the cost of a bag of ice a day.

    1. Re:Ice water would provide near 0 C operation by shadoelord · · Score: 1

      The only problem is when you go below room temp, you get condinsation. He could always cover his board in vasoline :)

      --
      this is my sig, there are many like it, but this one is mine.
  85. Bless you by Anonymous Coward · · Score: 0

    Prosit? Did you sneeze?

  86. I had a friend... by Anonymous Coward · · Score: 0

    I had a friend that had a watercooling system set up. He ran a tube from his toilet water reservoir which provided nice cool water running through the copper heatsink. His one mistake was taking bathroom usage into account... whenever someone flushed his computer crashed.

  87. GHETTO! by Bocaj · · Score: 1

    G..H..E..T..T..O...
    I just don't know what else to say...
    I'd love to seen this run for any real length of time.
    How did this wind up on Slashdot anyway? I thought we posted mods done by people with some technical skill. This is as bad as the guy with the spray foam case, or the linux server Chrismas tree.

  88. What a hack. by jridley · · Score: 2

    The guy's got the right idea, there's no reason his basic idea isn't good (I was considering doing the same thing myself) but it looks like it was implemented by Bob Vila - totally hacked together without even any real attempt to think of the best way to do it. It looks like he walked into a hardware store and grabbed the first thing that looked like it might work.

  89. Freezer-box cooled CPU by Syrcam · · Score: 1, Interesting

    Right now I don't have many water cooling needs, but in about 6 months, I will. I'm getting a high-performance computer, such as an Athlon XP 2000+, and intend to overclock it to the max. To do this, I need as much cooling powazz as I can get... Here's the scoop on how I would do this:

    My idea to cool my next CPU involves a water cooling block [say...swiftek] and a couple of hoses running through a fishtank pump. I also had a brilliant idea of placing the water reservoir inside my mini-freezer and running the hoses into the freezer to get some really cold water through the system. This will be done by making a couple of holes through the freezer's door seal and porting the hoses through those holes, using a bit of caulking to seal everything nice and tight. The water reservoir will be something small enough to fit in the door of the freezer (like a 2-liter bottle of coke, a small ice cream container, a tupperware, etc...). The hoses will go in opposite ends of the freezing water tank, to maximize cooling, rather than one next to each other. I'll also make sure that the computer is placed close enough to the freezer box in order for the water from the freezer to get to the water block cold enough for it to have the best posible cooling effect. I'll probably use some pricey isolated hose to get the water to the block as cold as possible, and use a regular cheap rubber hose for the returning water. Replacing the water in the reservoir will be mandatory, at least once a month, once I build the system. I was thinking about using distilled water to minimize mineral buildup in the water cooling system, thus giving it more effectiveness and a longer service life.

    The reason why I picked a fishtank pump in this project is because I've had a cheap fishtank pump in my fish aquarium for over three years, without problems, it runs 24/7, and makes very little noise!

    I hope this cooling idea helps anybody who has a mini-freezer, or is buying one for their room. I'm almost positive that this way of cooling the CPU will increase cooling performance by a considerable amount, as the water entering the block is near frezing! with this said, just imagine what you can do to your AMD T-bird / Duron / XP / MP.

    Happy cooling,

    Syrcam

  90. Very Cold & Fairly Cheap by Sirius25 · · Score: 1

    Dry Ice + Alcohol Works Great!

    Add Dry Ice to 90% Pure Alcohol untill it stops sublimating, & you'll end up with a cheap liquid around -78.5C (-109.3F).

    A Nice alternative to Liquid Nitrogen, pretty much the best Temp for your $$..

  91. Combination Water Heater / 10ghz CPU by Wargames · · Score: 1

    For now fine. Consider the future, will it fit in my Dick Tracy watch? How am I going to lug around a 40 gallon water heater on my wrist?

    --
    -- Each tock of the Planck clock is a new world and here we are still life. --
  92. Re:Do slashdot editors read the stories they link by plenTpak · · Score: 1

    the -pump- only lasts 10 minutes because it overheats after that. what he should do then, obviously, is to make a second waterblock to water-cool the pump.

  93. Re: About gold by hansiboy · · Score: 1

    Actually Gold is significantly worse than copper in thermal conductivity (it's a better electrical conductor) you can see a cpu cooler review here discussing this. silver however is marginally better.

  94. Re:seems like a pretty complex way to make awaterb by Ogerman · · Score: 2

    Where did you find the aluminum blocks and how much did they cost?

  95. con-con-conde, con-k-cond, oh, moisture! by twitter · · Score: 2

    This might work well in a desert, but the majority of live close to water, hence the ice balls in the no-defrost fridge. So, when you reach for that beer the air gets in and sees the cool bits of your PC. "Ahh," says the air, "that just what I wanted," as it cools off and looses its water. When those little beads of condensation hit your traces, or your 120V power supply, snap crackle pop goes your computer. Chances are you can dry it out and start again, but that's not the kind of chance I like to take. Beer in fridge, good. PC in fridge, bad.

    --

    Friends don't help friends install M$ junk.