How To Check If Power Supply Is Failing. Even if you routinely clean your desktop computer they still only have a life span of around 3 to 5 years. So if you press the power button your desktop computer does not start and there are no lights that light up then you may have a failed power supply.
So switch off the power switch. If your computer begins making this grinding sound its usually very sudden and without warning. If its from the power supplys fan youll want to get it fixed before it dies and causes the unit to overheat.
Check the power cable is secure in the wall socket and rear of the computer.
If its not you should go to the following article for No POST troubleshooting. So switch off the power switch. Just do these things. The computer is on for a while but maybe while youre playing a game or using another.
