Solution #2. Firstly, I would check the physical cables connecting the PSU to the wall is okay, they are quite cheap and can be found at most stores. You should also try a different power outlet. If this doesn't change anything, have a look inside at the computer itself, make sure the cables from the power supply leading to the motherboard are Repairor replace your power supply unit. 4. Replace your fan and motherboard. 5. Reset or flash your BIOS. 1. Restart your computer. As simple as it sounds, restarting your computer might be the fix for your issue. The fan could get stuck by even some small particles and the impulse could bring it back to life. . #2. Pulling the plug after it had shut down should not have been a problem. You may like to check that you pushed the plug all the way back into the socket and that the switch on the Thecomputer will not start just by flipping the switch on the back of the powersupply. You eather need to hit the power switch on the case (after its been plugged into the MB) or it looks like the board has a start and reset button right below the sata ports. if so you can trun the motherboard on and off by these buttons. 0. Onevery power-on cycle, the PC will go through 3 important steps. This guide only covers a scenario with "No Power". For No POST or No Boot, refer to guides 103 and 104 respectively. Power - PC is receiving power from the power supply. Usually some LEDs will light up and fans will begin to spin. POST - (Power On Self-Test). The PC's FaultyFan. A faulty fan is one of the most common reasons for the 'PSU Fan not spinning' problem. The fan can become faulty either because it is jammed due to dust, or due to hardware failure that includes worn-out bearings, or because of some component failure in the fan. In all these cases, the best solution is to replace the fan with a PP802J.

computer not turning on power supply ok