How to change fan speed in BIOS?

[Cpuwarrior]

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.

 

[jemm]

Can you post your config, please? Some motherboard manufacturers have it in a different way.

 

[Cpuwarrior]

you mean my entire system? my Mobo is K9N6PGM2-V2

 

[Computerrock1]

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.

 

[Cpuwarrior]

I want to lower my fan speed because it is constantly at 4500 rpms

 

[Computerrock1]

Ok, reduce the minimum speed and set the default to either auto or minimum.

 

[Cpuwarrior]

there is no default option, only the 3 that I said then there is PC health status which I can't access.

 

[Computerrock1]

Well, did you reduce the minimum?

 

[Cpuwarrior]

Yes I did, It seems like the cpu fan is always going on max no matter what, I don't know why.

 

[Computerrock1]

Well, that is all you can do from bios then, try the rest with speedfan as suggested in the previous set of posts.

 

[Computerrock1]

By reducing the minimum speed in BIOS, you gain more control of the speed in speedfan

 

[Cpuwarrior]

In speed fan, It is not fanspeed1, fanspeed2 etc when I open it up. it is PWM1, PWM 2.

 

[Computerrock1]

ok, change those then, it will do the same thing

 

[Cpuwarrior]

 

[Cpuwarrior]

Nothing happens. the RPM stays the same.

 

[Computerrock1]

so you set all three of them down to zero and had no change?

 

[Cpuwarrior]

Yup. This is crazy, I don't know why it is not working

 

[Computerrock1]

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.

 

[Cpuwarrior]

Yup, if I bought another heatsink which I am thinking about doing, Would it still run on max or no?

 

[Computerrock1]

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."

 

[Computerrock1]

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.

 

[Computerrock1]

something like this with only a 28 dB max would be ideal http://www.newegg.com/Product/Product.aspx?Item=N82E16835233081

 

[Cpuwarrior]

On my mobo, there is a square box around the heatsink, is it possible that a tx3 could fit in it?

 

[Computerrock1]

a tx3?

 

[Cpuwarrior]

Coolermaster tx3 its a heatsink I was looking at.