My computer started to act funny recently. It was working fine the day before. If it helps, I normally put it into sleep mode using my dual- power button. I turned it off and turned it on like normal (I was coming from work) and the display started to go all weird and distorted before the BIOS screen. I turned it off and on again and it got past the BIOS screen but the display still started acting all weird. Soon after that, I lost all video signal and haven’t been able to see anything since. The computer doesn’t do POST when it starts up and I swapped the video card figuring it would change things. I checked the monitor which works perfectly on other systems. And the same with the video cards. I figure from previous research it might be the PSU (600W) but I don’t have any others laying around, nor computers available for testing.
So is there anything I can do to try to get it back to normal?