Re: I found the problem but.....
You should check your BIOS and see if theres a setting to autocontrol the cpu fan.
Basically, when its in a safe temp, itll slow, and if too hot, it speeds up.
This would be best so you don't fry it out. But yes sitting at 70% is okay, but you reAlly should check for load temps. Use prime95 for that.
Foldie = i7 950@ 4.0Ghz Gigabyte x58a-ud3r EVGA 970 SC Corsair H100 Corsair hx520 3x2gb OCZ Gold Corsair 650D
Woohoo = L5639 @3.1Ghz EVGA SR-2 gtx 260-216 Hyper 212+ Corsair 1050hx 6x2gb Corsair XMS3 Blackhawk Ulra
Alienware 18 - SLI 770M 4700mq 16Gig