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Socket Adapter Brings Pentium M to Desktop

EconolineCrush writes "Intel's Pentium M processor is widely regarded as the company's most compelling chip, and although desktop versions of it won't be available until next year, a new adapter from Asus allows users to run a Pentium M on existing Socket 478 motherboards. When coupled with a compatible motherboard, the CT-479 adapter is much cheaper than existing Pentium M desktop platforms, and also offers better performance by allowing the processor access to dual-channel memory configurations. Considering the Pentium M's frugal power consumption and great clock-for-clock performance, this could be an interesting upgrade for those looking for a low-noise system."

48 of 197 comments (clear)

  1. Fairly Cheap by Anonymous Coward · · Score: 2, Funny

    Well, now I know what the question was for the answer of life, the universe, and everything. It's, "how much does the CT-479 cost."

    1. Re:Fairly Cheap by thegoogler · · Score: 3, Informative
      quite a bit more than even a 3800+, 1.7ghz is $250 at newegg, and i think 2ghz was at about $399-410 right now, so

      more than you would want to pay for a chip+adaptor

    2. Re:Fairly Cheap by eobanb · · Score: 4, Informative

      Dude, he was asking how much the adapter, the CT-479, in the article was. It's $42.49.

      --

      Take off every sig. For great justice.

    3. Re:Fairly Cheap by scum-e-bag · · Score: 3, Insightful
      Why not diversify the processor line by selling both fast low wattage processors and slightly cheaper fast high wattage processors?
      The Intel marketing dept doesn't want to look foolish after having spent all that money on promoting the P4...
      --
      Does it go on forever?
    4. Re:Fairly Cheap by Quattro+Vezina · · Score: 2, Informative

      Because Intel doesn't have the balls to admit that NetBurst (the P4's microarchitecture) is a steaming pile of crap, and that the Pentium M is far superior to anything that's ever been based on NetBowel.

      And, for the record, the PM already contains the only two good features the P4 ever had: SSE2 and the QDR bus. And that's on top of all the wonderful features of the PM that have nothing to do with the P4.

      Yeah, Intel is really insecure right now. They're too ashamed to admit that the P4 was a massive fuckup, so they're trying to hide what could have been an incredibly good desktop platform.

      --
      I support the Center for Consumer Freedom
    5. Re:Fairly Cheap by ciroknight · · Score: 2, Informative

      But that's just it, if it wasn't for the Pentium 4, there'd be no Pentium M. Pentium M was designed as a comprimise between the Pentium 3 M and the Pentium 4 M. The P3M was a fast mobile chip, but they needed something faster and lower in heat production. So, taking the technologies from the Pentium 4 (Netburst-style micro-ops fusion, QDR FSB (and pretty much all of the logic dedicated to bussing), SSE2, (SSE3 eventually), along with the Pentium 4's voltage profile, etc), they made a fairly compatible chip (testimony to the ability to use a small adapter to fix the pinout for the P4 board to use a PM).

      Now, the Pentium 4 serves the Pentium M in one last service until they can retire this iteration of Netburst; a technological proving ground for new technologies. Think about all of the innovation going into the Pentium 4, better virtualization support (vanderpool), dual cores, EM64T, NX Bit, the list goes on and on. These are all things that will find their way into the Pentium M, but aren't appropriate as of current for a mobile processor.

      Lastly, I'd hate to say that Netburst is dead. I think just as everyone does, Intel has made some mistakes with the Pentium 4 that are unforgivable. The next iteration of the Pentium series based on Netburst will probably have the Pentium M's cache system, a shortened pipeline, and a lot of micro-op revamping. It'll probably only see the light of day in the Xeon department, giving Intel something they've been working towards for quite a while; having different archetectures, better suited for work that they're doing.

      Normally, I'd go into everything AMD is doing to compete, but since this articles all about Intel, I'm just gonna sit back and be done. Note that I'm an all-around processor fanboy from lowly ARMs to the biggest of the bigboy processors IBM's cranking out.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
  2. awesome by poind3xt3r · · Score: 5, Funny

    w00t. now ive got a reason to smash open my ibm t30

    1. Re:awesome by mpathetiq · · Score: 5, Funny

      You need a reason?

    2. Re:awesome by darkjedi521 · · Score: 2, Funny

      Hate to break it to you, but those things had the short lived Pentium 4-M mobile chips in them. They make nice space heaters.

  3. In other news... by nxtr · · Score: 2, Funny

    Intel releases the Pentium M processor.

  4. Next logical step for quiet PC's. by Sv-Manowar · · Score: 5, Interesting

    I've always wondered about the potential of today's mobile cpu's as quiet/silent & power efficient replacements for the current crop of desktop processors. It'll be interesting to see how Intel react to this, and if enough people make use of these adapters to noticably affect P-M sales. After reading articles about silent PC's, and the various steps/careful hardware choice required to create them, its only logical to move to components where the cooling & noise issues have already been considered in the component design.

    1. Re:Next logical step for quiet PC's. by Sv-Manowar · · Score: 4, Interesting

      I use a Powerbook, and I'd pretty much suggest the same thing myself.. that most people looking for a quiet pc would be far better served with a laptop of some kind instead (not to mention the numerous benefits of laptops combined with wifi etc). However moving well-thought out, power conserving chips from the laptop to the desktop can only be a step forward for desktops in general, and a crucial change of direction from the bigger-is-better P4 Extreme Edition style upgrades that have been delivered in the last few years.

    2. Re:Next logical step for quiet PC's. by syukton · · Score: 4, Interesting

      Laptop screens are not friendly to gaming.
      Laptop RAM capabilities are usually limited at 1GB or 2GB.
      Laptop CPUs cannot generally be upgraded.

      Those are probably the big reasons.

      --
      Reinvent the wheel only at either a lower cost, greater effectiveness, or your own personal enrichment and satisfaction.
    3. Re:Next logical step for quiet PC's. by level_headed_midwest · · Score: 5, Insightful

      Several reasons: 1. Desktops are less expensive for the same amount of CPU horsepower. 2. RAM, hard drives, opticals are all faster and less expensive. 3. Desktops are easy to fix if something breaks- parts are standard (except for some Mac parts.) Laptops are all proprietary. A $30 CD drive will cost $200 to replace.

      --
      Just "gittin-r-done," day after day.
    4. Re:Next logical step for quiet PC's. by scum-e-bag · · Score: 2, Insightful

      In such a case, you are not going to want a Pentium-M. You will want raw cpu power which is not the Pentium Ms forte.

      --
      Does it go on forever?
    5. Re:Next logical step for quiet PC's. by freidog · · Score: 3, Informative

      As one of the many people who picked up an AthlonXP-Mobile, I can tell you it's pretty nice.
      An SI-97 and a Panflo ultra quiet fan, it's nice and cool, and the loudest thing on the computer is a pair of WD ATA hard drives.

      The biggest drawback to intel right now for me is the 80-100+W TDP on most of their chips.
      I look forward to a dual core Yonah ~40-50W part.

    6. Re:Next logical step for quiet PC's. by mccoma · · Score: 3, Informative
      Tom's Hardware has an article from today about the new Pentium-Ms and Celeron with TDP listed.

      Pentium-M 778 - 1.6 GHz - TDP of 10 watts
      Pentium-M 780 - 2.26 GHz - TDP of 27 watts
      Celeron 380 - 1.6 Ghz - TDP of 21 watts

    7. Re:Next logical step for quiet PC's. by mcrbids · · Score: 2, Insightful

      Several reasons: 1. Desktops are less expensive for the same amount of CPU horsepower. 2. RAM, hard drives, opticals are all faster and less expensive. 3. Desktops are easy to fix if something breaks- parts are standard (except for some Mac parts.) Laptops are all proprietary. A $30 CD drive will cost $200 to replace.

      Based on this post, I'd guess that (pick one)

      1) You've never used a laptop system.

      2) You've only used a dysfunctional laptop system.

      3) You are tight of means.

      I resisted having a laptop, until my work more or less forced me to buy one. I bought a 1.7 Ghz Dell Inspiron 600m, and I run RedHat Fedora Core on it. It took a few months for me to get used to 60 GB instead of 250 GB. I think it was when I upgraded to 1.5 GB of RAM that it really started to grow on me.

      Now, I go anywhere, compute on the couch, back patio, coffee shop, airport, etc. I take "workations" now, where I go on vacation with my wife/kids, knowing that I'll be working a partial workweek. Throw the laptop in the back, and off I go...

      Once you've experienced the freedom and comfort of a good laptop system, you'll *never* want to go back! I know I sure won't!

      --
      I have no problem with your religion until you decide it's reason to deprive others of the truth.
  5. 'compelling' chip? by cheezus_es_lard · · Score: 2, Funny

    Can someone explain to me exactly what the chip compels one to do?

    1. Re:'compelling' chip? by Kris_J · · Score: 2, Insightful

      Given that it has high performance for very low power consumption, it compels one to buy it. 130W less than a P4 @ 3.4GHz under load? Depending on your video card, that might make the difference between a power supply with fans and one without.

    2. Re:'compelling' chip? by Antique+Geekmeister · · Score: 2, Insightful

      It's also vastly better for Beowulfs and cluster computing, since such a reduction in power consumption will seriously cut cooling costs and reduce the need for extra power cabling and uninterruptible power supplies to handle power outages. Extending the power outage lifetime of a data canter by 50% by using a different CPU at no significant performance cost is a big, big deal. Keeping computing cluster cooling costs and requirements of chilled air down is also a big, big deal.

  6. PentiumM in desktop vs Mobile Barton in desktop by non-poster · · Score: 5, Insightful

    So, I've been running a AMD Mobile Athlon XP Barton (link) in my desktop for about a year, in a standard Socket A motherboard (NForce2 based). It is easily overclockable, and runs cooler than my previous main CPU, an Athlon XP 1800.

    Is the PentiumM that much better, or is it just the CPU du jour?

    1. Re:PentiumM in desktop vs Mobile Barton in desktop by aka1nas · · Score: 3, Informative

      Actually, the lower voltage Mobile Barton models run on 35W, albeit they don't perform as well per clock as a P-M or A64. The Low voltage A64s, on the other hand, guzzle around 30W to 40W but you have to keep in mind that the memory controller is on the chip as well. On a Pentium M setup, the chipset will be using more power as the mem controller is still on the northbridge so overall system power consumption will be close enough that you wouldn't notice on a desktop system.

    2. Re:PentiumM in desktop vs Mobile Barton in desktop by cbreaker · · Score: 2, Insightful

      Other processors come close. And they got more stuff on board, like memory controllers and multimedia extensions.

      Again, it's not a 1:1 battle for the least watts of heat like it's not a 1:1 battle for more Mhz. There's other factors.

      I think the Pentium 3.. erm.. Pentium M is a fine chip and I always liked the P3 more then the P4. P4 turned me off from the start with it's lackluster performance and expensive Rambus RAM. Pentium 3's continued to beat the P4 in performance for some time until the P4's got into the 2.0+ Ghz range.

      AMD has never let me down with any of their chips, way back to the 486DX4 to the K6 to the Athlons and beyond. I see lots of promise on their mobile lines; and after feeling jaded from the Pentium 4 launch I'm not holding my breath for the Pentium-M.

      --
      - It's not the Macs I hate. It's Digg users. -
  7. Review, Pentium M on desktop hardware by MooseMuffin · · Score: 5, Interesting

    Over at Tom's from a few weeks ago. http://www.tomshardware.com/cpu/20050525/index.htm l Redundant yet?

    1. Re:Review, Pentium M on desktop hardware by rsrsharma · · Score: 4, Insightful

      Covered by AnandTech back in March. Now that's gettin old.

  8. Re:But it's not 64 bit! by snuf23 · · Score: 2, Insightful

    I dunno. I guess you'd have to ask Apple that question!

    Seriously, expect to see lots of improvements in the Pentium M. I'm sure dual core and the Intel 64bit extensions will be added in to the line. It's likely the desktop versions won't be called Pentium Ms.

    --
    Sometimes my arms bend back.
  9. How about a more scalable solution? by NRAdude · · Score: 4, Interesting

    Does anyone know about those neat 386-based computer systems that install into your motherboard's unused DIMM sockets? Has anyone seen the Sun or Apple alternative x86 solution whereas a complete computer is assembled into a PCI adaptor form-factor and installed into a PCI slot to give access to a x86 nativity?

    We need more of these solutions. Just for the utility of it, I want a computer for general purpose use; consider a Transmeta solution, and then have a Pentium M co-processor that I can enable or disable when I need it to boost an application, or even better a Hitachi SuperH 128bit solution for quicker and greater math precision. I'm waiting for the days to return when computers were modular, separate FPUs from the die core for example, like back in the late 80's when the manufacturer gave you the manual that has all the BIOS function calls and circuit schematic in such an open manner.

    All I see today is a bunch of unnecessary IC bloat, taking advantage of increasing transistor efficieny to use more transistors and obtusely dissipate more heat with a design that is bigger than the previous. Is progress to obsolete computers or give what is needed? I would settle for a fab-shrunk 8-way computer based on the earlier technology because it worked. Where are all those great designs going to, or is it just a fighting statistic? How about a 386 PDA? Anyone seen one yet?

    --
    without prejudice
    1. Re:How about a more scalable solution? by Urusai · · Score: 5, Informative

      The Amiga had such a board way back when, a generic CPU emulator that used FPGAs to emulate multiple processors. It could supposedly emulate a Mac faster than a real Mac (probably using the Amiga's CPU, though). They were still trying to get 486 emulation debugged last I heard, many moons ago.

  10. Great by Anonymous Coward · · Score: 5, Funny

    The power of a laptop and the size of a desktop.

  11. More info on tomshardware.com by bluelarva · · Score: 4, Informative

    Toms's Hardware has a great article on Pentium M's performance. It's definitely worth a read.

    1. Re:More info on tomshardware.com by mike.newton · · Score: 2, Funny

      Toms's Hardware...

      I haven't heard of that site. But I'm sure it's very precious.

  12. Fantastic! Power consumption saves the day by lightyear4 · · Score: 2, Interesting

    This is great..glad that Asus is keeping ahead of the game as always. I think I'll grab this simply for the great reduction in power consumption.

    On a similar note, who remembers the OverDrive for your old 486?

  13. Confused by story blurb... by KenBot_314 · · Score: 2, Interesting
    "although desktop versions of it won't be available until next year"
    "the CT-479 adapter is much cheaper than existing Pentium M desktop platforms"
    WTF?
    Which is it?
    1. Re:Confused by story blurb... by Kris_J · · Score: 3, Informative
      Intel will be releasing Pentium M technology in a CPU package that suits typical desktop motherboards in the future. Meanwhile, several manufaturers have produced desktop computers using laptop chipsets so they can offer a cool Pentium M CPU solution.

      Does that explain the apparent contradiction?

  14. Re:But it's not 64 bit! by linguae · · Score: 2, Insightful

    Because Apple sells more than just Power Mac G5s. The Pentium M would be perfect for Apple's consumer lines (Mac Mini, eMac, iMac, iBook) and Apple's PowerBook line, because of its low energy consumption and good performance (compared to the G4 that the Pentium M will replace). iBook and PowerBook users won't have to worry about their laptops frying their laps, for one. Plus, perhaps we might see some of that Centrino stuff in Apple's notebook lines, since they will probably use the Pentium M.

    As for the Power Macs, Intel has a 64-bit Pentium 4 (i.e., one that understand AMD's 64-bit extensions to the x86 instruction set) and the 64-bit Xeon. The Xeon is a server-class chip, so it might be seen on the XServes that Apple sells and is comparable to AMD's Opteron.

    Intel actually sells a wide variety of chips for various different types of computers. I'm still a little disappointed that Apple is dropping the PowerPC (I still hate the x86 ISA and architecture with a passion), but Intel seems to have a pretty nice and well-rounded product line that is more suitable for a company like Apple. It's a shame that IBM have failed to deliver on their promises with 3GHz G5s and a cool laptop version of the G5; I would kill for a 64-bit non-x86 laptop with Mac OS X right now. But oh well.

  15. Re:So What... by jericho4.0 · · Score: 4, Insightful
    From Tom's Hardware;

    "Additionally, we were able to raise the FSB from 133 to 160 MHz without any trouble at all. The result was that our 2.13GHz Pentium M 770 ended up running at 2.56 GHz! At this clock speed, our two year old platform was able to beat the processor heavyweights Athlon 64 FX and Intel Pentium 4 Extreme Edition in all 3D games! "

    At 27 watts max compared to 155. How much was that Athlon 64 FX again?

    --
    "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
  16. WTF?!? more erroneous info? by Grandmaster+Mort · · Score: 2, Informative

    "...and although desktop versions of it won't be available until next year..." Uh, both AOpen and DFI have had Socket 479 (Pentium-M) motherboards for the desktop available (iirc, both are micro ATX form factor) for several months. Granted, those motherboards are overpriced (at least they were back in January when I built a Dothan box for my mother (mobo was about $250 back then), but that clearly shows the above quote to be bullshit.

    --
    si vis pacem, para bellum..."if you wish peace, prepare for war"
  17. AOpen products by shikra · · Score: 3, Informative

    If anyone cares, there is already a native Pentium-M board from AOpen based on the Intel i915G chipset. No need for convertor crap. The upcoming small form-factor Pandora XPC from AOpen is Pentium-M based as well.

  18. Re:WTF?!? more erroneous info? by Kris_J · · Score: 2, Informative

    I believe the "it" in your quote is a Pentium M in a standard desktop socket CPU package. A DFI board is in fact used in the review.

  19. Northbridges... by evilviper · · Score: 4, Informative

    While it's nice to get a lower-power CPU, your results aren't going to be very impressive. The fact is, northbridges are also very power-hungry, and using the northbridge for a P4 with a Pentium M will certainly not give very good results. You really need a motherboard designed for the Pentium-M to get a low-power system, otherwise you'll just be wasting watts, and making a lot of heat for no reason.

    It seems nobody ever talks about the Northbridge, which, IMHO, will over-take the CPU, within a year, as the hottest component in a computer. If you take a year-old system, and put all the components (CPU/RAM) in a brand-new motherboard, you'll see the power consumption go up 10-20 watts. Why do you think they are now requiring fans on many of them? Even the motherboards that don't have one, commonly NEED one. They just leave it off because they know people don't buy motherboards with fans on the northbridge.

    They just assume case airflow with be enough to keep the northbridge within spec, which is rarely true. Many people with unstable systems may assume it's a CPU or software problem, while pointing a fan at the northbridge heatsink may be all they need to do to solve the problem. I have some Asus and MSI motherboards that are guilty of this (SiS and VIA chipsets).

    What pisses me off (personally) is that repeated requests to Asus, MSI, VIA and SiS for power specs on their chipsets/motherboards have been completely ignored. For that reason, I have kept using my old systems (brand-new Asus motherboard wasting space in my closet) and will not upgrade until I can find specs on motherboards (idle/load) before I buy them.

    --
    Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
    1. Re:Northbridges... by Quattro+Vezina · · Score: 2, Interesting

      It seems nobody ever talks about the Northbridge, which, IMHO, will over-take the CPU, within a year, as the hottest component in a computer.

      More like the northbridge will disappear in a year or two, at least on AMD platforms. AMD has already integrated the memory controller on-die, and there are rumours of Socket F including an one-die PCI-E controller.

      What's left for a northbridge to do?

      --
      I support the Center for Consumer Freedom
    2. Re:Northbridges... by evilviper · · Score: 2
      you'll see the power consumption go up 10-20 watts.

      A P4 can consume up to about 100 watts of power, which is significantly more than 10-20 watts.

      Notice the bolded section. The previous generation of northbridges weren't drawing 0watts.

      Your figures on P4 power consumption is completely wrong as well. They are commonly drawing more than 130watts, but their power consumption increases have ceased, but northbridges are increasing in power consumption dramatically.

      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  20. Pentium M versus Athlon 64, poor comparison by WhiteWolf666 · · Score: 2

    I don't care about the difference in power usage between a Pentium M (laptop) and a Athlon 64 (desktop) cpus. It's an irrelevant number.

    I'd be very curious to see the difference in power usage (and benchmarks) between a Pentium M (plugged into a 478-socket system) and a low-voltage Athlon 64 (laptop version) plugged into a similar desktop board.

    Not the difference in power usage by the processor, mind you, but the difference in power usage by the entire *system*, and at the various stages of idling.

    A pentium M northbridge will use significantly more power than an Athlon 64 northbridge. And Athlon 64s do an amazing job of throttling down to low powerlevels (enough that they can be cooled via passive cooling, and I believe they survive the heatsink-fell-off test.

    --
    WhiteWolf666 an exBush supporter. All you new-school,compassionate,save the children Republicans can rot in hell
    1. Re:Pentium M versus Athlon 64, poor comparison by ciroknight · · Score: 3, Interesting

      Well I can assure you that the Pentium M wins. Need proof? Go read a laptop review, Turion 64 vs Pentium M. The Pentium M kills the Turion in heat production and battery life, but the Turion's better performance-wise, which is all that matters to a lot of people.

      Why I'm answering this is that you're being very ignorant of the fact that the Pentium M, relatively unchanged, is the next Intel desktop CPU, therefore completely invalidating your statement that a Laptop CPU vs a Desktop CPU isn't fair, or irrelevant in any way. Simply put, the Pentium M is about to destroy the competition when it comes to IPC, the entire system around.

      A Pentium M northbridge will use more power, this is obvious; it's got to deal with DDR2 memory, it's got to deal with PCI Express and all of these other controllers on the bus. AMD trying to stick all of these controllers on to the CPU is only relocating the heat, and at the cost to the consumer; now every time a bump in CPU speed comes about, I'm going to have to throw out my whole system.

      AMD64's do a great job throttling, but I'm sorry to burst your bubble; Enhanced SpeedStep is far superior when paired up with software that can use it right. Fine-grained CPU speed speeds can drop the Pentium M to virtually no output, and it can still run a screensaver or two ;) (to me, this is amazing; my desktop computer's a dual proc Pentium 3 workstation from last century and it can barely run the screensavers that came with my linux distro).

      Stop being ignorant. The competition's about to get red-hot again, and we're the ones who will benefit. Choosing sides too early's only going to cost you more money in the long run. And as I'm due for a new desktop very soon, I'm watching the playing field very, very closely.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
  21. Slashdot Submissions? by Hack+Jandy · · Score: 2

    Is there any chance Slashdot can stop accepting submissions from the authors of the stories submitted?????

    Tom's Hardware and Anandtech reviewed this stuff like 5 months ago; I think one of them even got slashdotted for it.

    HJ

  22. Re:how about by evilviper · · Score: 2, Informative
    Because a P3 with 500MHz runs on 89W and a P-M with 1500MHz only 10W.

    Where in the hell did you get your numbers? 89W is absolutely INSANE for any PIII processor.

    PIII-500E FC-PGA 1.6V 13.2W
    PIII-1.0G (6-B-x) 1.15V 12.1W

    And the 10W P-M is not typical, but a real rareity. Most are ~25W. eg.

    Pentium M-1.5G 1.484V 24.5W

    Personally, I would LOVE to get my hands on a PIII 933MHz or 1.0GHz system. Should be cheap, accepts all the old PC133 RAM I've got lying around, and really, really low power. Otherwise, I'm not getting a new system until some of the lowest-power AMD64s get cheaper.
    --
    Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  23. I tried it by vadim_t · · Score: 4, Informative

    It costs about $50, and comes with the adapter, heatsink and fan.

    How good is it? I have no idea, since I broke a pin on it while trying to get it to work.

    Here's a warning to everybody thinking of trying it: The adapter is held in the motherboard's CPU socket only by the locking mechanism. The design makes it quite easy to apply pressure in such a way that it will rip the adapter off the motherboard's socket.

    For some reason, the instructions go like this:
    Insert adapter, insert CPU, lock CPU with screw, add heatsink. But I found that it's very uncomfortable, and risky. Be really careful when doing that, especially while installing the heatsink.

    On the next time I'll probably do it differently: insert the CPU into the adapter, lock it, then insert the adapter into the motherboard and add the heatsink.

    I broke it because I thought I was applying too much force while trying to fix the CPU and didn't turn the screw far enough. After removing and inserting the adapter several times I finally realized I didn't turn it all the way, but that must be when I bent the pin.