First, turn off the caps lock key, unless it is broken too. That is considered rude.
To get any meaningful help you need to give some information about the system, how old it is, when the problem started, other problems with it, what happened unusual right before it.
So info on the computer including the make and model number and the power supply, including maker and wattage (it's on the side of the power supply inside the case).
See below. We'll be waiting for your responses.