So my pc was shuting down while gaming. I lowered my max cpu state,and it stoped on SOME games.On the official website on my gpu it says i need 500w of power. But my firend that found the parts(he was decideing about the PSU)he sent me this website https://www.techpowerup.com/reviews/HIS/HD_5850/28.html which show how much the gpu spends power on idle,peak,max... But also one thing is that my gpu at idle is about 55 deggres,on some more graphicly intesive games(ex. Watch dogs or somerhing) its about 90 deggres. So my "theory" is that it dosent have enough power to cool it down effectivley tho on msi it says that the fan is normal.(ex. 25% on idle 60 on some games...) Please help me i dont know what to do!