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Thread: Case fan always on at 100%?

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    Case fan always on at 100%?

    Hi, I just built my new PC and everything seems fine, but there is one thing that is sort of getting on my nerves. I installed an aftermarket fan (Coolermaster sickle flow blue led) to my case (Coolermaster elite 430), because it originally only came with one fan in the front.

    I have plugged the aftermarket fan into the 3 pin header (sys_fan1) on my motherboard (gigabyte z68xp-ud3) and yet it stays on at full speed whenever it is powered up. The original case fan is plugged into the 4 pin fan header on the motherboard (it is a 3 pin fan, I just left out the reserve pin on the mobo) and that is controlled perfectly, varying speed with the temperature of the system.

    I'm not sure why this has happened; I thought that plugging fans into the mobo means they have their speed controlled. Is there any setting I need to adjust in the BIOS or control panel, or maybe a piece of software I can download which will allow me to control the speed of the fans?

    Thanks,
    Adam

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    Re: Case fan always on at 100%?

    Unfortunately most motherboard BIOSes only allow the control of the CPU fan or perhaps one other (usually northbridge), despite having variable headers available. Check the BIOS for fan control settings.

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    Re: Case fan always on at 100%?

    Quote Originally Posted by Eggbert View Post
    Hi, I just built my new PC and everything seems fine, but there is one thing that is sort of getting on my nerves. I installed an aftermarket fan (Coolermaster sickle flow blue led) to my case (Coolermaster elite 430), because it originally only came with one fan in the front.

    I have plugged the aftermarket fan into the 3 pin header (sys_fan1) on my motherboard (gigabyte z68xp-ud3) and yet it stays on at full speed whenever it is powered up. The original case fan is plugged into the 4 pin fan header on the motherboard (it is a 3 pin fan, I just left out the reserve pin on the mobo) and that is controlled perfectly, varying speed with the temperature of the system.

    I'm not sure why this has happened; I thought that plugging fans into the mobo means they have their speed controlled. Is there any setting I need to adjust in the BIOS or control panel, or maybe a piece of software I can download which will allow me to control the speed of the fans?

    Thanks,
    Adam
    Hi there
    You have got a couple of options when it comes to fan control:

    option 1. Enable fan control in your bios and then use EasyTune6 which you should have on your driver disc. if not, you can get it here http://uk.gigabyte.com/products/prod...2&dl=1#utility

    Option 2. Get yourself a fan controller, much easier to use in my opinion, one like this

    http://www.scan.co.uk/products/akasa...pin-compatible

    Option 3. Buy one of these
    http://www.noctua.at/main.php?show=p...s_id=26&lng=en

    Quietest fans you can buy. They come with different leads so you can turn down the fan speed. they still move a decent amount of air. They might look horrible but once you use Noctua, you wont use anything else.

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