1. Check Power Source & Cables: Ensure the power cable is securely plugged into both the back of the PC and a working wall outlet or surge protector. Test with a different outlet if necessary.

2. Inspect the Power Supply Unit (PSU) Switch: Make sure the physical toggle switch on the back of the power supply is flipped to the “I” (ON) position.

3. Clear Static Charge (Power Reset): Unplug the power cable, hold down the PC’s power button for 30 seconds to drain residual motherboard power, plug it back in, and try turning it on.

4. Check Internal Connections & RAM: If lights turn on but nothing displays, loose internal components like RAM sticks or front panel headers may need to be reseated.