CPU Fan speeding up

[Macky]

I have an Arctic Cooling Pro 7. E8400(3.33GHZ), Asus P5Q. Every 10 seconds or so it sounds like my CPU fan is speeding up, and then it slows down again. At least I think it is the CPU Fan. This was also happening before I Oc'd. Are there any settings I can do in Bios to fix it, or do I just grin and bear it? Thanks. Edit. - Just noticed that it seems to speed up when going over around 50% CPU usage. I guess this has something to do with it.

 

[mollymoo]

Dont know what it will be on that m/b ........ on mine it was cool and quiet and basically it switches your fan to full bore instead off going up and down with temp of cpu

 

[valdai]

Should your cpu really be going over 50% usage every 10 secs in general usage? What's the load?