Why my system is not powering on?

Make sure any surge protector or power strip is correctly plugged into the outlet, and that the power switch is on. Double-check that your PC’s power supply on/off switch is on. Confirm that the PC power cable is properly plugged into the power supply and outlet, as it can become loose over time.

Why is my PC not turning on after building it?

Try unplugging and replugging that component and make sure it is snug in its socket. Clear your CMOS. This can be done either by removing the button cell battery on the board while the power cable is unplugged from the back or by using the clear CMOS jumper on your motherboard.

What do you do if your computer won’t turn on?

How to troubleshoot your Windows PC when it won’t turn on

Try a different power source.
Try a different power cable.
Let the battery charge.
Decrypt the beep codes.
Check your display.
Check your BIOS or UEFI settings.
Try Safe Mode.
Disconnect everything non-essential.

What to do if Windows 10 is not starting?

Click “Next” on the Windows Setup screen, then “Repair your computer.” This will open Boot options where you can troubleshoot many Windows problems. Go to “Troubleshoot -> Advanced options -> Startup Repair.” When you click “Startup Repair,” Windows will restart and scan your PC for any system files it can fix.

What happens if you don’t have a power supply on your motherboard?

Your motherboard needs power, and so does your processor and graphics card. Depending on your specific parts, you could be looking at three or more power cables extending from your power supply that need to be plugged in, and if one of those is missing, your system will just stare at you blankly when attempting to fire it up.

Why is my computer not turning on after a power outage?

Even though the surge protector is plugged into the wall, if the power switched gets accidentally bumped to the off position, your PC is not going to boot no matter how many parts you replace. It’s best to check this first before you start ripping hardware (or your hair) out. The same thing applies after a power outage or lightning storm.