How To Check If Power Supply Is Bad. Many power supplies have an external switch located at the rear of the unit. Turn off the computer.
If your system is having issues turning on you can check if your power supply unit PSU is functioning properly by performing a test. However I would just like to check my power supply with a voltmeter before buying a new one. If it still does not turn on then it is most likely dead.
If you have paper clip just put it in the middle of charger pin and bent it through outer point and scratch a little bit it will develop sparks if it is have supp.
A bad power supply can be the root of many PC problems. Can also cause this situation. We have no standby light led on front. Upon opening the cover inspect the power supply circuit board for charred components.
