Why Is My Dell Desktop Not Turning On. Performing a hard reset fixes many problems and also drains residual power that may be causing the problem. Open case and disconnect main power supply connector from the motherboard.
Turn on the computer. Press the power button to turn off your computer. Power off and unplug.
Also check if the power button status of the system tower changes after draining the flea power.
As soon the computer starts press F8 on your. Also check if the power button status of the system tower changes after draining the flea power. Press and hold the power button for 10 to 15 seconds. Press the power button to turn off your computer.
