My monitor will shut off randomly right after matches. The actual PC will still be running however, and making lot's of noise as if the fans are on full throttle. I have concluded that it is the PC's fault since I have used the monitor on different hardware with no issues. In order for it to boot up again, I have to restart the desktop manually. This only happens with certain demanding games, and never in the middle of games; usually right after the match has ended. The screen will just go black and say "No signal." I think this is due to the motherboard or PSU. However I don't which one to buy first. Any ideas?