I left my PC running fine all weekend, but when I returned, it wouldn't turn on at all. The motherboard light is still on (it's an Asus Prime B450M-A II), but the system itself isn't responding. I tried shorting the pins on the motherboard, but nothing happened. I also tested the power supply unit (PSU) using the paperclip method, and that seemed to work. Recently, I swapped out the motherboard and case fans—could that be causing the issue?
1 Answer
Have you tried checking the power output from the PSU? Just because the PSU powers on doesn’t mean it's giving enough voltage. You might want to use a multimeter to confirm it’s working properly.
You can usually find the voltage specs on a sticker on the PSU as well. Make sure it's delivering the right levels.
Are you suggesting I measure it directly? That sounds like a good idea.