CPU Fan spins up really loud, no post Tags: CPUs Motherboards Last response: October 25, 2012 2:58 AM in CPUs Share The Halo Don October 20, 2012 6:04:34 PM We've been having an issue with a PC, every time we power on the computer the CPU fan seems to be spinning at max rpm causing it to be really loud. I've been searching and people are saying problems like this are caused by the Motherboard, and if something has failed, I really hope it was the motherboard(because they're cheap to replace ) Anyone know what else can be causing this? More about : cpu fan spins loud post profkefah October 20, 2012 6:44:38 PM download hw monitor http://www.softpedia.com/dyn-postdownload.php?p=89594&t... m 0 l greddy23 October 20, 2012 7:08:28 PM have you tried plugging the fan into the other cpu fan connector? In some motherboards it has another spot to plug in the cpu fan connector and it says OPT CPU or something along those words. Also, this happens with my computer, I have an H80 Liquid cooling on low settings,but when I turn on the pc its super loud until after the POST and windows starts loading then the fans are quiet. m 0 l Related resources Motherboard wont post CPU fan spins - Forum Cpu fan really loud - Forum CPU Fan Really Loud - Forum Can mobo beep without cpu? Cant power my pc up. split second fan spins no boot. - Forum MSI Radeon 7770 Fan is really loud on start up? - Forum Can't find your answer ? Ask ! Get the answer The Halo Don October 20, 2012 10:17:59 PM Don't think there's another CPU fan header on the motherboard. Anything else I can try? m 0 l The Halo Don October 25, 2012 2:58:08 AM Hard reset the CMOS, still nothing. New motherboard? m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedNo POST or beep. Fans spin up. Nothing more happens. Dead PSU, Motherboard or CPU? Forum SolvedCPU fan spins up momentarily, then stops and BIOS reports error Forum Solvedcpu fan not starting properly, loud noise at start up Forum CPU fan spins, but no post, no beeps, no LEDs. Do I have a dead motherboard, CPU or both? Forum CPU fan spins really fast, but black screen Forum A really loud fan on start up Forum SolvedCPU fan is loud and spinning extremely fast, whats the problem? Forum CPU fan spins at full speed. No display but get POST beep. Forum No POST on brand new build, Fan Spins up and stops Forum Will not post, Cpu fan spins for a fraction of a second then stops, no beeps Forum SolvedLoud CPU Fan On Early Start up Forum Video card fan spins at full speed on power up and fails POST Forum SolvedGA-P55A-UD3 CPU fan spins up briefly and randomly Forum No POST, PSU fan spins but CPU fan does not, internal speaker ticking. Forum No post, CPU fan spins, CPU fried? Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !