Slashdot Mirror
Swaying CPU Fans
Vindi submitted a New Scientist story about a CPU fan that flaps in the breeze. 2cm metal or polyester
fan blades, and use less power then a traditional rotary fan. They move less
air then the traditional fan, but for laptops, using 99% less power
can't hurt. Update Hey its a duplicate from saturday! Guess I shouldn't
post while planning my trek to see LotR tomorrow. Go ahead, flame on.
begezzus
The worst terrorist attacks, blah blah blah and you people have the gall TO RUN DUPLICATE STORIES?? My *god* people, GET SOME PRIORITIES!
You people disgust me!
The alien life forms from this one movie that generated their own oxygen and swayed, plantlike, for most f the day distributing it into the atmosphere.
They looked like giant leaches, except that they were greenish and 8ft. tall.
Oh yeah, they ate humans too.
Using 99% less power can hurt if it doesn't cool enough and catches the darn thing on fire.
As x approaches total apathy I couldn't care less.
Look for the most insightful posts from the original article and whore all you want:
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http://slashdot.org/article.pl?sid=01/12/13/201
Slashdot covered an almost identical article a few days ago here.
Shh.
Isn't this just the same as this story from a short while ago?
Or am I missing something? :)
If you ever drop your keys into a river of molten lava, let'em go, because, man, they're gone.
I wonder if the amount of power conserved on the laptop would allow me to post the same story twice on slashdot on the same charge that previously I was only able to post the story once?
fifth post.
fucking poseurs
I've been looking into this a lot recently, and there's some pretty (ahem) cool developments on the cpu front recently, with x86 architectures.
.13u means a lot. Frequencies are so high and chips are so powerful that underclocking has become a real option. A good general target for fanless operation is about 12 watts. You can go higher with good case airflow, or lower if you're dealing with troublesome ambient temperatures.
Some people point to the VIA C3-800, but if you have real computing needs, steer clear. It runs comparable to a Celeron 400, which is almost, but not quite adequate for general computing. Instead, check out the old reliable suppliers. The shift to
Right now, you can take the Intel Tualatin pIII 1.13GHz (28W), cut the bus speed to around 100MHz, cut the voltage down to about 1.1v and be right in the target range. Of course you won't know exactly w/o experimentation on your cpu, but it *should* be doable. If you're worried about losing efficiency to bus speed, remember that you can compensate by running it on one of the PIII DDR chipsets that are now available (upping effective bus speeds to 200MHz) or waiting until February, when Intel says they'll release a similar part themselves. Additionally, the 512k (vs 256k) cache on the pIII-s will offset lower bus speeds. Just check out the specs of the PIII-M LV models at developer.intel.com and ask how they got to those low wattage numbers with the same core. Since the last fanless G4 was 400MHz and claimed (in its wildest fantasies) to be a supercomputer twice as fast as a pIII, a fanless 800MHz pIII is not insignificant.
Even better, surprise, is AMD. The current mobile palomino runs at 1.1GHz, 1.1v, 25w. This is clearly just an underclock of the current 1.75v desktop XPs. But what it tells you is that the AMD architecture is very open to undervoltage at lower clock speeds.
Now if you consider AMD's forthcoming die shrink, things really look good. Zdnet.de reported (unsourced) that the Athlon 1.73GHz processor would drop from about 75W to 45W after the changeover. Depending on how far you could drop the voltage, you could be looking at a 1-1.2GHz part running at about 10W! Fanless! Now imagine (a beo..no) 2 of these in a well ventilated case, with an MPX board -- 2GHz of dead silent AMD power! Wooo!
This previous story from a couple of days ago on...
Slashdot...?
Oh well. :-\
These sigs are more interesting tha
...A Beowulf cluster of Arab-killing CPU fans?
taco, pay attention next time.
Or just use a notebook that never has to use a fan because it stays cool enough.
and this is not the same as this how?
that we create a beowulf cluster of repeated Slashdot stories.
No statement is true, not even this one.
...New Scientist will use one of these fans on their editor, his brain will catch on fire, and they'll start publishing articles that are closer to science than a supermarket tabloid.
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
Doesn't anybody think it's cool to be noisy anymore? I mean, say what you will about being distracting and all that, but I'd love to impress my friends with a PC that sounds like a lawnmower. it's POWER! it's TOUGH! it's AMERICAN!
sometimes worrying about things like noise is too girly, even for me.
At least from Piezo Systems Inc. [piezo.com] in Cambridge, MA. Their specs are worth reproducing:
* Input Voltage: 115VAC, 60 Hz
* Capacitance: 15 nF
* Power Consumption: 30 mW
* Volume Flow Rate: 2 CFM, (0.9 l/s)
* Peak Air Velocity: 400 FPM, (2.0 m/s)
* Weight: 2.8 grams
* Mounting: #2-56 clr. holes, 2 places
* Temperature Range: -20 C to 70 C
* EMI/RFI: None
However, they're not cheap. Pricing starts at $149. Additionally there is a Piezoelectric Resonant Blade Element [piezo.com]. Interesting stuff. Hopefully mass production of piezoelectric fans will lower their price to the average customer range.
And the people shall be oppressed, every one by another, and every one by his neighbour Isaiah 3:5
I thought this story was going to be about a bunch of Intel and AMD nuts getting together and drinking. Oh well.
well, as I mention the previous article I'm sure many others are rushing to do the same. I make a wager regarding the number of "Pay atttention Taco" duplicate posts I'll se as I return to the comments.
Damn, phone call... the number goes up.
In my best keanu-talk "Woah, Deja Vu".
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http://slashdot.org/article.pl?sid=01/12/13/20102
E.
-
This Post has been brought to you by the letter "E".
Seriously, this should be rated Insightful and Interesting.
You could've hired me.
...somehow use the heat from the CPU to power the fan. As the CPU got hotter, the fan would move faster.
I have no idea how this could be done, but there must be a way.
It is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail. - Abraham Maslow
they reject peoples stories, and then repost the same crap from a few days ago... maybe Slashdot needs to look at the submissions a bit more closly...
Taco repeats another story.
Hey, Taco. Why don't you lay off the Diablo II for a few minutes so you can actually see what's going on on this precious site of yours, eh? Do your editors even talk to each other, let alone you?
Idiot. Things like this certainly don't lend an air of professionalism or credibility to your site, but I forget sometimes that Slashdot isn't really news or stuff that matters. It's Rob Malda's private wankdesk.
LOL moderators suck here, this whole STORY is offtopic, quit wasting space with REPEAT STORIES You stupid fuks!
There is a point to have chinese fans, if you have the chinese women to keep your case "cool".
Than, THAN, THAN, T-H-A-N!!!!!
Learn it, use it.
less power THAN
less air THAN
This is only the millionth time you've made that mistake. Very slow learner.
It's English, your native language, using it correctly is better THAN looking like an idiot. And fire your copy editor, he or she is totally unqualified.
Light cup, beer drink, thin so chain, neck turtle fat, man I won't say it again
You never know SlashDot may one day have Fans or Cooling devices ass a seprate section.
:P
I would be blown away if the fan would work better for less power
--
The computer told me to press any key to continue,I pressed the one looking like this (|) !!OH SH*T!!
Oh YES! lets mod down those that point out what kind of MORONS run /.
/. has made SEVERAL SERIOUS BLUNDERS (repeat stories, posting stories that had previously been rejected, and lest we forget the moronic "story" about Afghanistan and the commadore recovered from under a chickenhouse so they could download movies)
/. fess up to your mistakes...
lets punish those that point out that
Please
Would be a cpu fan club?
Consistency is overrated.
:)
The Bigger The Headache The Bigger the Pill
look at all the good responses that are linked to here... /. is just mad that you pointed out that they are STUPID MORONS
The other story deals with cpu cooling fans that are little waving thingees that move FROM SIDE TO SIDE.
This story is about a cpu cooling fan with little waving thingees that move UP AND DOWN.
It's obviously a completely different technology!
I think this has already been posted but, anyway, immagine a Beowulf Cluster of these?
Aw, screw it. In the spirit of the season, I'll just wish them both a Merry CowboyNealmas!
Mr. Ska
This means that searches for things like "IBM" or "cpu" or "CSS", etc end up with no results. This makes it much more difficult to find things like duplicate stories about AMD CPU. etc
this likely needs to be fixed so that when an editor searches for a dupe he does not get trapped.
"It is a greater offense to steal men's labor, than their clothes"
"We get many submissions each day"
if you get many a day, how come you have to repeat stories?
or make them up (dig a commadore out from under a chicken house, my ass)
Is it just me, or does anybody else think that Utada Hikaru would make for a _real_ nice fuck? I've jerked off all over myself on more than one occasion while watching that sexy little bitch's videos. My fantasy is to fuck her in every position imaginable, and then when I can no longer contain myself, to spooge a load into her willing mouth.
Maybe it's just me.
It's kind of hard to tell exactly what this article is describing, but it sounds like exactly the same thing at half the size.
--
"Open source is good." - Steve Jobs
"Open source is evil." - Microsoft
I submitted this story 3 times and it was rejected all 3 times. I demand this story be reposted 3 more times giving me credit!
We still luv ya... :)
I do have a question. Why not just remove the article after you find out that it's a duplicate? Judging by the... er... quality of comments, is it really worth it to keep the article up?
-AlPhAbEt
For those who are unaware, piezoelectric crystals are items that will change shape under the application of an electric field and/or generate a potential difference (i.e. a voltage) when squeezed.
They're used in inkjet printers - they're in ink some cartridge when an electric field is applied to them and they change shape, forcing the ink out of the I also hear the they used them in the ipod for some sort of playlist control mechanism.
Ok, I just got this be-yoo-t-ful image in my mind:
Imagine the piezoelectric fan on a larger scale, not just waving a metal+ceramic blade (single flexible surface area), but creating an undulating sheet about the size of a letter/a4 size piece of paper using stripes of piezoelectric flexion areas that create a wave every 2-3cm. Now combine this with the latest in flexible printed circuitry top and bottom (or 2 layers top and bottom, for the really adventurous). I'd imagine you might also need periodic non-flexible stripes (ends?) for components and connects that can't be made flexible. Then add a lower-power processor and put it into an enclosure only slightly larger than the wave height, such as, say, a laptop computer housing. What do you have?
You'd get a motherboard that cools itself by cilia-like swimming/undulation movement that pushes air (against the enclosure) across its surface silently.
You'd get quieter rackmount systems, with 1U or "blade" servers that self-vent. ("Ah, yah need tah balance yer server there, buddy, the blades are outta sync.")
You get a laptop that you might enjoy putting in your lap. (On second thought, I'm not sure I want to sit next to someone on a plane with a two-stroke laptop...)
- Marco
None - Bill declares Darkness an Industry Standard!
And the people shall be oppressed, every one by another, and every one by his neighbour Isaiah 3:5
Gee..what stupid ideas people come up...I think that this is the bogus idear that I ever heard.....oh btw TACO is gay
Why isn't there a moderation system set up for the stories that are posted? What I mean is the stories themselves should be modded just like the comments. I think that would make the most open system possible. Also, the editors would have an additional measure to the types of stories that people respond to. That way things like this would be modded down as a repeat and ignored much easier.
This is not meant as a Troll, just constructive criticism.
"It's comin' back around again..." -RATM
Cmdr Taco is to see LOTR tomorow.
Which means he wasn't involved in the pirated copies seen in GB on VCD and tapes...
words of less than 3 characters are not indexed
/. articles.
This means that searches for things like "IBM" or "cpu" or "CSS", etc end up with no results.
No, it would mean 'is' and 'it' aren't indexed. Since the page actually says less than 4, your second statement is true though - which is wierd considering the number of TLAs in
"don't fall into the fallacy of believing that Perl can solve social problems. Maybe Perl 6 can, but that's a ways off"
Doesn't anybody think it's cool to be noisy anymore? I mean, say what you will about being distracting and all that, but I'd love to impress my friends with a PC that sounds like a lawnmower. it's POWER! it's TOUGH! it's AMERICAN!
sometimes worrying about things like noise is too girly, even for me.
It's been a while since I pondered the intricacies of slashcode, but they could probably filter it so that it caught TLAs which were uppercased (well, any three-letter word which was uppercased, it wouldn't know it was an acronym). This would catch stuff like IBM and CSS, since those are the kinds of things people would like to be able to search on.
Communication is only possible between equals
This post is a repeat of one from the LAST time this story was posted...
Imagine...
Washington Post: Dec 13, 2018. Details are now emerging about the accident that irradiated much of Germany on Tuesday. Nothing is as yet confirmed, however, initial reports indicate that a heatsink was somehow removed from an AMD processor (PR rating 10,000,000). A bizzare terrorist group with the initials THG may have been involved. Containment was lost, and critical mass was reached almost immediately. AMD representatives have issued a statement in the wake of the carnage: "Obviously, they were using an improperly designed motherboard."
Is your company running tools written by ma
lets see three or less characters, or three or less days ago.
must be a bug in the SlashDot AI they are trying to develop in secret. Something OSDN is developing to see if they can dispense with human story selection, moderation, etc.
think about it. Can YOU tell the differance?
"It is a greater offense to steal men's labor, than their clothes"
Much more important: the article mentions that it produces no noise.
That will save me a headacke or two - my DELL Inspiron desktop-replacement starts an aeroplane everytime it does something harder than running an editor.
"BZZZZZZZZZZZZZZZZZZ"
>> CPU fan that flaps in the breeze
So, um, how much breeze is needed? And if there's a breeze, why do you need a fan?...
I don't mind the noise, but dissipating heat in general would be a good thing.
The thing they need to do is make chips that run cooler. And yeah, Crusoe's do run cooler but they don't perform optimally in a task-switching environment.
Cooling the CPU is fine, but the heat has to go somewhere and a better solution is to go back to the drawing board and figure out how to reduce the heat output in the first place. PLEASE.
- Marco
Taco gave us permission to flame! Lets go!
:-P
Flame #1: Why is Overrated/Underrated not M2'd? The conspiracy theory here is that since editors moderated with unlimited points, its a way for editors to moderate things they don't like (censorware, anything said badly about them) down without feeling the wrath of M2!
Flame #2: Is the AC privacy on slashdot really safe after upgrading to Slash2.2??
Flame #3: Do you really think that people with a lot of comments need to get out more even though they are indirectly lining your wallet?
Let the flame war begin!
And remember moderators, this is on topic, cause Taco said to "Flame On!" (at least gimmie a point for attempt at humor)
Good quote, too many chars. Seriously, the slashdot 120 char limit sucks!
What I want to know is just what the people in this industry did to CmdrTaco that would make him Slashdot their servers twice in a week?
sarchasm: The gulf between the author of sarcastic wit and the person who doesn't get it.
Most CPU fans that I know are dedicated to their favorite CPU and it is very difficult to sway their opinion
They move less air then the traditional fan,
Here are some examples to help clarify the correct usage of Then and Than: 1. If you're ugly, then you're not pretty. 2. My dog is nicer than yours. 3. Back then, we had to eat bugs to survive. 4. More often than not, Sally would skip breakfast. Thanks.
"Would it kill you to put down the toilet seat?" -- Maya Angelou
just like this story....
7 02 944
http://slashdot.org/comments.pl?sid=24866&cid=2
Involving a lady, a cat, a candle, and a fire at a friends house.
Best Slashdot Co
is the answer to that question.
Quote:"...and use less power then a traditional rotary fan. They move less air then the traditional fan, but for laptops..."
Then/than; what's the difference?
They use less power THAN etc. etc.
You can tell a lot about a journalist by their ability to spell (or not). I'd rather get my news from a source that can spell rather THAN one that can't.
English, the lost language.
I am a troll.
They move less air then the traditional fan
Point-o-grammar: When you compare something, use "than" rather than "then".
Thank you.
Hey Taco -- if Slashdot is so boring and poorly written that even _you_ do not bother reading it, do you think that might be a good hint?
That's ok taco, it was interesting enough the first time, didn't so much mind seeing it again.
(moderation: +1 suckup)
You would only be contradicting the laws of thermodynamics if you used the power generated to power the CPU.
Karma: Shitty (mostly due to American moderators)
Taco sucks my sweaty nutsack!
What, me, proofread?
Berto
Yes I had one of those as well.
It just sat in there flapping away and moving just enough air to keep things from over heating.
Okay... I'll flame away. The constant, repeated posting of duplicate stories, often within a day or so of each other demonstrates an unbelievably poor level of editorial oversight. I propose that /. editors lose editorial privilages for 24 hours after each such obvious gaff.
Hey its a duplicate from saturday! Guess I shouldn't post while planning my trek to see LotR tomorrow. Go ahead, flame on.
Please don't flame. This story is about CPU fans.
... And we all know that you shouldn't flame the fans.
"The best part? I became an ordained minister while not wearing pants." -- CleverNickName
or you could properly make it I.B.M. and use the periods to denote that you are using initials -- I.B.M. is 6 chars long
How about in order to be eligible to post on the main page, you have to visit the site at least once a week?
-- 'The' Lord and Master Bitman On High, Master Of All
So I wouldn't want a box designed for natural convection only. But for the user that finds adding a USB peripheral challenging, doesn't need 1GHz, and doesn't want that fan humming, maybe it would work.
It's been done, by apple (who else?). Since the introduction of the models that had slot-loading CD drives in October 1999, iMacs have been fanless, cooled totally by convection currents. Not surprisingly, the iMac was designed for the novice user who doesn't need 1GHz and won't ever be dinking around in the thing's innards, so convection cooling was the way to go.
The G4 Cube was also cooled in this manner, but that model was directed at studio managers and CEO types who likewise wouldn't need expandability.
~Philly
Go CPU! (woof woof woof!)
"I have as much authority as the pope, I just
don't have as many people who believe it" - George Carlin
This concept invokes visions of those palm leaves-attached-to-a-stick-and-a-motor that you see in some classy restaurant type places. Anyone tried miniturizing that and putting it in a PC?
WHy wait till tomorrow? Many theatres are sneaking it at 12:01.
It's obvious that Slashdot is on the decline, the authors are getting soft, the news is stale, even the code has gone cold. I consider Slashdot second or third tier on the fresh news hierarchy. Sites like Fark are now running laps around Slashdot and I think it's only a matter of time before Taco turns off his servers and returns to "Commanding" the drive-up window at Taco Bell.
yes if in your city the picture house has a midnight showing, you too can catch the film tonight, or actually its tomarrow AM.
No shit, Taco. Don't you get paid to work for
here Goes...
What do you mean LOTR Tommorrow?! Someone with your power should be able to convince their local theaters to show it a day early!
At least some of us were able to do it here in the Twin Cities.
;-P
It's much more fun to have a good old-fashioned flamefest.
Hey its a duplicate from saturday! Guess I shouldn't post while planning my trek to see LotR tomorrow.
Perhaps you shouldn't check spelling and capitalization while planning your treks. Do your planning BEFORE you spellcheck.
--
"Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
I mean, come on. Slashdot editors post what, 12-15 stories a day? How hard is it?
It is sad to see how much slashdot quality has slipped.