Please help done all i couls do im at lost now..done ddu ,clean format,bios chipset update rollback,reseated all components..during startup my pc will go blackscreen a couple of times and sometimes reboots before i could enter username..one fix i ll do is to restart my pc then it normally boots and i can enter username w/o pc freezing..also in game i dont encounter crashes. It happens randomly when im browsing..can i post videos here?so u guys can see the problen