Have I confused my computer & What could be the problem?
The problem I have is that i've put an old pentium 4 cpu fan as a second exhaust fan to see if it would help when overclocking (it was there so w/e) but it seems to be stopping the AMD CPU fan from spinning up properly.
If you work the pc hard then the exhaust fan spins wildly while the AMD cpu fan just does hardly anything.
I've read that the AMD fan decides its temp based on case temp?
I'm using the M4A79XTD EVO motherboard if this helps your deliberations.
I know that on the motherboard I just got, some of the fan sockets don't support multiple speeds, or something like that. I currently have 4 CPU fans, 3 case fans, and 4 fans for my RAID arrays. My computer is a server motherboard, but it might be similar on yours. The computer is very loud on idle, you can hear it downstairs with the door open. On full load, the fans don't seem to change. I have also tried some 3rd party fan tools, and the fans aren't detected, but it is an old computer, and the fans were part of the case I believe.
Anyway, if you don't have any luck in the bios, there is a freeware program called speedfan that I would give a try. You might be able to adjust some of the fan settings through it. Not all fans are supported, but might be somewhere to start.
answered Feb 07 '11 at 18:33