CPU fan always at 100% while there's no load on the CPU (tried AI Suite, Fan Xpert and BIOS tweeks, nothing does it)

LFG

Reputable
Oct 27, 2015
4
0
4,510
Hi,

I have Windows 7 (64 bit), core i7 2600k 3,4 ghz, 8gb RAM, Asus P8P67 pro mainboard, Corsair SSD... I also have a swiftech water cooling fan for the CPU (that I didn't install myself). I have AI SUITE II.

This fan is always working at 100% (wich is around 2500 rpm all the time if FanXpert is reliable) even if the CPU temperature is well below 20C and even if I'm just browsing the web. It is really loud, kind of like listening to Top Gun but without any good quotes.

Every ''auto'' or ''quiet mode'' for the CPU fan in the BIOS have been tested, I even tried turning it of (at 0% max), it changed nothing. I tried every tweek in FanXpert and it doesn't change a thing (for every ''Fan Power'' it shows the same RPM). I wasn't able to use speedfan (but I didn't spend a lot of time with that software).

I am now considering unplugging the damn thing when I just surf the web, but I know that would be a dumb move.

I've read many threads here and there, but no solution proposed seem to work for me. There's just one that I wasn't able to try, it implied the fan calibration file from FanXpert, but I can't find it.

Any idea? I'm starting to get a bit crazy.

Thank you for your help,
LF
 

LFG

Reputable
Oct 27, 2015
4
0
4,510


Turning what process off exactly? I was talking about turning of the fan wich is not listed as a ''process''.

Thank you,
LFG

 

LFG

Reputable
Oct 27, 2015
4
0
4,510


The fan seems to be connected to the motherboard right aside the ''CPU_FAN'' mark. It seems to be properly detected since I can monitor the fan's rpm at all time. There is one ''CPU_FAN'' connection, but the cable connected to it splits in two, there are two cables coming out of the fan module itself. If I plug just one, the fan seems to be working just fine but it still runs at a really hight RPM, if I plug both the RPM goes even higher/the fan gets even louder.

Thanks,
LF