I have a desktop that won't boot, and the monitor doesn't turn on.
The weird thing is as soon as you plug the computer, it turns on and then you can't turn it off.
There's no light on the board to see if the power supply is OK, I don't know if there's a mic on it to know if the post is good. There's not even a switch on the power supply.
All the lights on the computers are on, I can open the disk tray but there's no display, so it makes me think that there's a problem with the onboard graphic card. I restored the CMOS and afterwards the computer won't turn on itself but once it started, it does the same until I restored the CMOS again.
I also tried to unplug the disk tray, hard drive but I got no luck.
Do you think it's a problem with the motherboard or should I take the time to test the PSU?