I want to thank everyone for they're quick and helpful responses. I replaced my fan with my old PC's fan, that helped a few degrees (this one is 2100 RPM, old one went 914 RPM, saw in Bios). But actually the real problem was that i didn't put enough pressure. And there was barley any contact between the CPU and heat sink. Now the temperatures are 40 C when not doing anything and 60 when playing games. I'm really sorry to bother you even further but i think i have another problem. When playing Borderlands 2 i now get double the FPS and my GPU is working 100% (unlike 60% with the old one), but my windows 8.1 seem slower, they boot slower (confirmed) and just seem more sluggish. I upgraded from Celeron E3500. Do i need to do something else now?
Everything is working faster (was just my placebo). But boot time really is slower should i put my swap space on another disk? And would my system work better on Windows 7? Sorry I really don't know much about computers, but even to me it makes no sense for slower boot with a faster CPU.