Ok, my pc is an AMD 635 with a 750w psu, 8 gigs of ram, and an MSI 560 ti twin frozr. This had worked fine untill tonight. I was do horribly stupid to change the bios setting from safe torecommended. Now the only thing my pc does, is start the fans, and then quiet them down. I have no clue what happened.
Sorry for being so late with responding...
I pulled the CMOS battery out (feeling stupid for not thinking about that...) and everything booted.
First time booting i had a black screen though, so i booted into safe mode, and everything turned out fine.
Anyhow, thanks for your insanely quick replies
P.S. I'm planning to get a completely new PC and just keep the current GPU i've got as a second one for i.e. NVIDIA physics. Becouse the CPU i've got atm is insanely slow (doesnt even have an L3 cache -,-) and fo the other parts, got a small 16mb cache HD, so gonna upgrade all the rest.