[Viegas]

Hi,

I got a new PC with a Scythe Shuriken Rev. B three/four months ago.
Every was going well, until a few days ago when I arrived from a trip and saw that my PC was turned off.
I didn't pay much attention to it but have since seen it happen a few times - the PC turns off because of overheating.

I monitored the situation and have found that the fan on the CPU cooler appears to not be working very well.
I disabled Q-Fan in the BIOS; I have found that if I leave the PC turned off for some time, I turn it on and the fan is at ~2000 rpm. The fan's RPM progressively decline throughout time. After about three hours, it is at ~1000 rpm and after one or two more its at such a low rpm speed that the CPU overheats.
The speed of my chassis fan is constantly between 980 - 1020 rpm throughout the whole process.

Any ideas on how to debug the problem further and What I can do to solve this problem?

Thank you.

Best regards,
Viegas