Scenario 1: Nothing happens when you press the power button

This problem can only have 4 probable causes:

  1. The PC has no power
  2. The power button is broken
  3. The power supply is broken
  4. The mainboard or motherboard is broken

It's best to check the possible causes in this order. We will explain step by step how to determine which cause applies to your problem.  If you want additional information, check out this Youtube video on the same subject we cover here: