I've got a Custom Built PC with an Asus Z97-AR motherboard I5-4670 NVIDIA GeForce Gtx 1080 & a corsair CX750M & ive even gotten a replacement of the motherboard Ram & Cpu to try & fix the problem the motherboard's a Z97-A & the cpu's an i5 4460. The problem started after a force shut down, the computer won't display & it won't shut down without a force shut down. Also sometimes the computer will reboot after a couple minutes. I'm thinking the problem might be because I didn't have all the screws in the motherboard. The only thing I can think of is that since the motherboard wasn't fully grounded it wrecked all the components which caused the replacement parts to break upon contact with the broken parts most likely power supply or Graphics card. Has anyone had any similar problems?