Troubleshooting computer power issues can be difficult, as the problem could originate with the power supply unit, or PSU, or the motherboard. Testing each component separately helps narrow down where ...

I'd guess you are looking at a cap failure in the original PSU. 386 era is what, early 90s. 30+ years is a good run. If a replacement PSU doesn't have a switch, you could always hook it to a surge ...

My 10 month old home-built system recently started exhibiting the following behavior. The machine refuses to power on using the normal power switch on the front of the case that's wired to the ...

How to test your PSU to see if it is dead or alive. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If your computer is behaving strangely or ...

An ATX power supply unit, or PSU, has a 24-pin connector for energy delivery. The symptoms of a dying or dead ATX PSU are identical to those of any PSU and involve operational problems in your PC -- ...