problem with convert of a pc power supply to a bench power supply

Thread Starter


Joined Apr 2, 2020
I tried to convert my old atx power supply to bench power supply,but one problem appeared.I removed all the cables and left only 1 yellow wire and one black wired in order to connect them to a buck conveter and ampermeter and voltmeter.However when I connect a load and the power supply turn off.I have to turn it off from the plug and after a whille turn it on again .Why the power supply turns off.What might be the problem.