Hello, I have a HP EliteDesk 705 G1 Desktop and recently I had left the computer on over night and came to find the computer fan was running full blast. I cut the computer off and when I tried to reboot, the first time it was able to get to the screen saying there is a problem with windows and attempting to repair. Then the computer screen went black and fan started running full blast again. I tried this multiple times until the computer wouldn't even show a boot screen, the fan would just start running full blast. Opened everything up, reseated the memory with no luck. Waited a couple of days and the computer started up again to the windows repair screen and then went black again and fan began running full blast and then back to black screen and fan running full blast again. I think it's probably the motherboard but also wondering about the power supply. Any help would be appreciated. Thanks!