Fans Always Spinning @ Max


  1. spazzyfry123
    Posts : 13
    Windows 7 Professional 32bit
       New #1

    Fans Always Spinning @ Max


    About a week ago I installed a new motherboard, graphics card, power supply, and more RAM. (I've got my profile on here updated with the parts list I believe?). I'm pretty certain I have downloaded all the up-to-date drivers, however, my fans are constantly running at full speed. I think the culprit may be the one over the CPU, but I'm not certain. The forums have been great help earlier with Windows 7 not booting properly.

    What checks and ideas do y'all have for me?

    Thanks!
    -Tyler
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  3. essenbe
    Posts : 26,869
    Windows 11 Pro
       New #2

    As far as the case fans, how are they powered? If you have connected them to a molex connecter from the PSU, they are going to run full speed all the time. If you have them connected to the motherboard, most boards have settings in bios that enable you to somewhat control the fan speed and almost every motherboard has settings for the CPU fan. Normally you set a minimum CPU temp. The fan will spin slower until it nears that temp, then speed up. You may want to download a CPU temp monitoring program to keep watch on CPU temps. I use Core Temp. Then you will be able to see not only your CPU temps, but be able to regulate your CPU fan speed in bios better.
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  4. DeaconFrost
    Posts : 5,795
    Windows 7 Ultimate x64 SP1
       New #3

    Fans should be controlled by the settings in the BIOS, assuming you have options and controllable fan headers. If the HSF on your CPU is running at full speed all the time, check your temps.
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  6. spazzyfry123
    Posts : 13
    Windows 7 Professional 32bit
    Thread Starter
       New #4

    Sorry for the delayed response; been slammed at my other job and haven't really had a chance to play around with the computer. What is a good temperature to be at?

    EDIT: The fans are powered through the motherboard.
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  7. essenbe
    Posts : 26,869
    Windows 11 Pro
       New #5

    If the fans are plugged into the fan headers on the motherboard, you should have some options in bios to control the fans. You may have options like a target temp. When the cpu gets to that target temp the fans speed up. If they are plugged into the PSU, they are going to run 100% all the time.
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  8. Cadiaqe
    Posts : 4
    Windows 7 32 bit
       New #6

    Try to dowload speedfan or go to BIOS to set up the gan and you should be ok.
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