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How to change fan speed in BIOS?

Last response: in Components
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July 16, 2012 6:17:07 PM

I went to H/W monitor and it does not show fan 1, fan 2, fan 3 etc. it only shows 3/4 pin option, min fan speed option and desired fan speed.

More about : change fan speed bios

July 16, 2012 6:20:32 PM

Can you post your config, please? Some motherboard manufacturers have it in a different way.
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July 16, 2012 6:22:12 PM

you mean my entire system? my Mobo is K9N6PGM2-V2
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July 16, 2012 6:22:56 PM

If you want to change it, modify the min fan speed and desired fan speed, they function as they describe. Reduce the minimum and set the desired fan speed to a minimal setting, it will automatically increase fan speed as cpu load and heat increase.
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July 16, 2012 6:24:38 PM

I want to lower my fan speed because it is constantly at 4500 rpms
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July 16, 2012 6:27:15 PM

Ok, reduce the minimum speed and set the default to either auto or minimum.
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July 16, 2012 6:29:07 PM

there is no default option, only the 3 that I said then there is PC health status which I can't access.
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July 16, 2012 6:30:31 PM

Well, did you reduce the minimum?
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July 16, 2012 6:31:52 PM

Yes I did, It seems like the cpu fan is always going on max no matter what, I don't know why.
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July 16, 2012 6:32:42 PM

Well, that is all you can do from bios then, try the rest with speedfan as suggested in the previous set of posts.
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July 16, 2012 6:34:24 PM

By reducing the minimum speed in BIOS, you gain more control of the speed in speedfan
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July 16, 2012 6:35:15 PM

In speed fan, It is not fanspeed1, fanspeed2 etc when I open it up. it is PWM1, PWM 2.
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July 16, 2012 6:38:36 PM

ok, change those then, it will do the same thing
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July 16, 2012 6:40:33 PM

Nothing happens. the RPM stays the same.
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July 16, 2012 6:41:50 PM

so you set all three of them down to zero and had no change?
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July 16, 2012 6:42:22 PM

Yup. This is crazy, I don't know why it is not working
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July 16, 2012 6:44:42 PM

Than your particular motherboard isn't compatible with speedfan and therefore, probably incompatible with any other fan speed controllers. If it is really bugging you, you can get yourself a hardware fan controller, or you can get a new heatsink for your cpu. I am guessing that you have a oem heatsink right? 80mm fan and it's pretty noisy.
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July 16, 2012 6:46:43 PM

Yup, if I bought another heatsink which I am thinking about doing, Would it still run on max or no?
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July 16, 2012 6:46:53 PM

After looking at your mobo specs I found this comment "but my system fans keep running at full speed. Have to use SpeedFan to keep the processor fan at 2000 rpms. Replaced one fan with a quiet molex-powered fan because SF wouldn't work with it. However, Scythe makes good fan control modules, so I'm going to invest in one soon."
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July 16, 2012 6:48:32 PM

possibly, but if you get a heatsink that is larger than 80mm's then it won't be as loud. The greatest way to know how loud a heatsink's fan will be is to look at the max dB it can output. anything past 30 dB or dBi can be considered noisy. Stock heatsinks run at about 38 dB.
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July 16, 2012 6:50:23 PM

On my mobo, there is a square box around the heatsink, is it possible that a tx3 could fit in it?
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July 16, 2012 6:52:24 PM

Coolermaster tx3 its a heatsink I was looking at.
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July 16, 2012 7:04:37 PM

17 - 35 dBA is the tx3's noise level. I would definetly opt for the XIGMATEK I showed you, much less noise. As for it fitting, it all depends on how big your case is.
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