How To Fix Psu No Power. Most power supply models have a light on back of the unit that glows when its powered on. On power-redundant systems remove and replace only one power supply at a time in a system that is powered on.

Whenever a power supply sent for repair whether it is a Monitor switching power supply or computer Atx power supply I will test the power supply first before open up the casing. My Electronics Course on Patreon Link Here. Learn about the half bridge configuration.
You will still see a power LED light up near the power supply or on the front of the case even if all other components on your computer are broken.
Check if power supplys output has been short circuited or overloaded. No I dont get a anything coming up it just starts up like normal but nothin in the screen the POST test seems to be okay the monitor is fine I use it all the time for my play station the cable arent faulty once again I use the same one for my playstaion its a HDMI and I have tried removing the graphics card and placing it back it correctly but I cant try my old one my friend has. If your power supply is on its. The components inside the PSUs look brand-new with no obvious problems no dust no bulging caps or burn marks all looks as though.
