Introduction
A computer that won’t power on can be frustrating and disruptive. This article outlines common causes and step-by-step solutions to get your PC back up and running.
Common Causes
- Power supply issues
- Faulty motherboard
- Disconnected internal cables
- Defective power button
Step-by-Step Solutions
- Check Power Connections
- Ensure the power cable is securely plugged into both the wall outlet and the computer.
- Test the outlet by plugging in another device.
- Test the Power Supply Unit (PSU)
- Use a PSU tester to confirm it’s functioning correctly.
- Replace the PSU if it’s faulty.
- Inspect Internal Components
- Open the case and ensure all cables are connected securely.
- Check for physical damage to the motherboard or components.
- Reset the CMOS Battery
- Remove the CMOS battery for 5 minutes and then reinsert it.
- Replace the Power Button or Test It
- Bypass the power button by shorting the power pins on the motherboard to confirm it’s working.