Reasons for PC not turning on

If your PC isn't turning on, here are some possible reasons to consider:

1. Power Supply Issues  - Loose or disconnected power cables. - Faulty power supply unit (PSU).

2. Hardware Problems  - Faulty motherboard. - Bad RAM or incorrectly seated RAM sticks. - Damaged GPU or connections.

3. Peripheral Conflicts  - Disconnected or failing peripherals (keyboard, mouse). - Try unplugging everything except the essentials.

4. Overheating  - Dust buildup may cause overheating, triggering a shutdown. - Ensure the fans are operational.

5. Short Circuits  - Cables or components may be shorting out. Check for loose screws or foreign objects inside.

6. BIOS/UEFI Settings  - Corrupted BIOS settings; consider resetting the BIOS.

7. Faulty On/Off Switch  - The power button could be defective.

8. External Power Issues  - Make sure the outlet is working and the surge protector (if used) is functioning.

9. Motherboard Issues  - Bent pins or damaged connectors could prevent powering on.

10. Battery Issues (for laptops)   - Dead or faulty battery; try removing the battery and using AC power.

If you troubleshoot these areas and your PC still won’t turn on, it may be time to consult a technician.