[SoloCamo]

In order to tell what power supply you have, open up the side of your case and examine the side of it. It will be in the top all the way at the back.

It should have a label with the make/model and the specs of it.

Also, is this a prebuilt computer like dell, hp, gateway, etc.? If it is, you can just give the model number of the psu, and I *should* be able to dig up the info on it.