Hello guys,i recent got a pc from friend who works perfectly but when i change his gpu nvidia 560 Ti with my gpu nvidia 750 Ti it stuck on bios logo screen and i cant do anything even i cant go in the bios,any help? ps. Sorry for my english its not my native language. Motherboard: Asus m5a78l-m lx3 CPU : Amd fx-6100 six-core GPU: Nvidia 750 Ti OC 8 gb ram and Windows 10