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  1. #1
    ROG Guru: White Belt Array ..VeNoM..'s Avatar
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    Question RIIIE CPU Header

    Hey peeps,

    Purchashed 4 Coolermaster 120mm Sickleflow fans to cool my rad. They do an excellent job but I find them to be a little noisy. I have them running from the PSU but i'm thinking of running them from the CPU header, that way the RPM will change auto with CPU load. However, I need to know how to run 4 3pin fans from 1 CPU header?

    Also, I'm in the UK so links to where I can get the cable from would be great.

    Cheers

  2. #2
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    Hmm... How about getting a Zalman Fan Mate 2 Fan Controller?
    They're less than a fiver, can help keep them noisy fans quiet, whilst keeping them powered from the PSU.

    info: http://www.zalman.com/eng/product/Pr...ad.asp?idx=206
    seller: http://www.overclockers.co.uk/showpr...odid=OA-000-ZA

    Alternatively, if you're more like me 'poor as f**k'. You'd go down the DIY route and knock something up! All you need is visit Maplin for a variable resistor, some heat-shrink and buy a cheap soldering iron kit. Then you can pretty much follow this non-nonsense guide:

    http://www.bit-tech.net/modding/2001...peed_control/1

    Once you've learnt how to do this, you can later move onto more sophisticated projects and make uses of the soldering kit you've purchased.
    Last edited by UltraNEO*; 02-08-2012 at 01:36 PM.
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  3. #3
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    Last edited by aberdeen; 02-08-2012 at 06:53 AM.

  4. #4
    ROG Guru: White Belt Array ..VeNoM..'s Avatar
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    Will the CPU header support 4 fans?

  5. #5
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    Quote Originally Posted by ..VeNoM.. View Post
    Will the CPU header support 4 fans?
    Use your chassis headers. there should be a setting in the bios to follow your cpu temps.

  6. #6
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    Personally, I wouldn't want to try!!
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  7. #7
    ROG Guru: White Belt Array ..VeNoM..'s Avatar
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    hmmm.... I have 3 chassis headers I think... I need 4 though... could use a splitter for 2?

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    Quote Originally Posted by ..VeNoM.. View Post
    hmmm.... I have 3 chassis headers I think... I need 4 though... could use a splitter for 2?
    Not sure how many headers there are but yes you should be able to use a splitter. Most fans don't draw much power so it's only an issue if you have industrial fans or you try to run something like a water pump with the header. In those cases I would carefully compare the specs on the output of the header and the draw of the device(s) attached to it.
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  9. #9
    ROG Guru: White Belt Array ..VeNoM..'s Avatar
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    So I found this information which is per fan.

    Power consumption: 4.2W
    Current (Ampere): 0.35A

    Then I found this info regarding my fan headers.

    The fan connectors support cooling fans of 350 mA-2000 mA (24 W max) or a total of 1 A-7 A (84 W max) at +12V.

    Looking at this, would my CPU fan header support 4 fans on a splitter cable?

    Source for fan info: http://www.coolermaster.co.uk/produc...roduct_id=6019

    Source for motherboard info: http://support.asus.com/Download.asp...ge+III+Extreme

    I found this cable: http://www.kustompcs.co.uk/acatalog/info_8683.html

  10. #10
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    Yes. The cpu headers on current boards have to support up to about 20-24W because some people use them for pumps. Most DDC pumps max at 20W so that means you can run a pump from the CPU header. So by comparison you can run several fans since they use much less juice.
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