I returned home after three days to find my PC completely unresponsive. It's connected to a UPS and there haven't been any power surges or outages. When I hit the power button, nothing happens—no lights, no sounds, it's like it's not getting any power at all. I've already tried using different outlets and power cords, checked the CMOS, and discharged the capacitors in the power supply. What else should I try next?
3 Answers
This might sound silly, but I've seen it happen before: make sure the main switch on the power supply is switched on. It's easy to overlook when troubleshooting.
First off, double-check that the UPS is actually functioning. Sometimes it might seem okay, but there could be an issue underneath. Just to be sure, make sure all cables connecting to the motherboard and the power supply unit are securely attached.
Yeah, I already checked that and everything seems tight on my end.
Have you considered testing with a different power supply? If your current one has died, it could be the easiest fix.
I really hope it's just that—sounds like a simple solution!
Haha, I’ve actually done that at least a dozen times already!