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Thread: How to bring CPU fan under control?

  1. #1
    Senior Member kalniel's Avatar
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    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
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      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
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    How to bring CPU fan under control?

    Essential compents are:

    AMD X2 3800 latest driver + dual core fix
    ASRock Dual Sata2 939 BIOS 2.10
    XClio 480W SCFT PSU

    I've noticed my CPU fan is solid on 3300rpm. It's plugged into the motherboard through the CPUFAN header, however there's no way of adjusting the fan in BIOS, and try as I might in Speedfan, I can't seem to adjust it - it can see the speed of the fan, but adjusting the % speed values has no effect.

    Firstly, am I doing something wrong in speedfan? I've tried downloading other people's speedfan profiles for my motherboard, but they're incorrect, as since 4.30 the CPU temperature is properly recognised and other profiles don't name the correct sensor (should be the k8 one).

    Secondly, if I can't get any motherboard speed control working, is there anything wrong with driving the CPU fan directly from the 12V rail of the powersupply? The XClio provides a 3pin 12v line I think, and there is also a bracket for the SCFT rubbish that has a potentiometer on it - I'm hoping that's speed control rather than timer control.

    I really don't need my CPU temps to be as low as 33C and it's clearly the loudest fan in the case.

    Thanks in advance,

    kalniel

  2. #2
    Flat cap, Whippets, Cave. Clunk's Avatar
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    you should be able to raise the temp threshold in the bios so that the fan slows down quicker

  3. #3
    Senior Member kalniel's Avatar
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    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
      • 12gb DDR3 2000
      • Graphics card(s):
      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
      • Monitor(s):
      • Dell U2311H
      • Internet:
      • O2 8mbps
    Quote Originally Posted by Clunk View Post
    you should be able to raise the temp threshold in the bios so that the fan slows down quicker
    I don't see any settings for temperature threshold - there's a page that just reports temps, but I can't change anything there.

  4. #4
    Flat cap, Whippets, Cave. Clunk's Avatar
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    have you got another fan that you can try on it?

  5. #5
    Senior Member kalniel's Avatar
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    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
      • 12gb DDR3 2000
      • Graphics card(s):
      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
      • Monitor(s):
      • Dell U2311H
      • Internet:
      • O2 8mbps
    No, I'll probably get one if I get too annoyed, but I would prefer to keep in warrenty and just adjust the speed of the stock fan.

  6. #6
    Senior Member ajones's Avatar
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    If it comes to it, try Zalmans Fanmate gadget or something similar to reduce the juice getting to the fan and slow it down.
    Corsair 500R, Gigabyte GA-Z97MX Gaming 5, Win 10 Pro, i5 4690, Corsair HX750i, Sapphire Fury X, 256GB Sammy SM951 M.2 (System), 2TB WD20EZRX (iSRT w/ Sandisk SD6SB1M), WD SE16 640GB, 2x8GB Corsair Vengeance, Corsair H100i
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  7. #7
    Senior Member kalniel's Avatar
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    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
      • 12gb DDR3 2000
      • Graphics card(s):
      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
      • Monitor(s):
      • Dell U2311H
      • Internet:
      • O2 8mbps
    Well I tried hooking it up to the SCFT panel - the potentiometer seems to do something.. in that when I turn it fully one way it stops the fan completely. The problem is that once the fan is going, the noise doesn't seem to vary at all no matter how much I turn the dial. I *think* the airflow was changing, but the noise didn't, so I can't tell.

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