|This is a desktop system? Have you ever opened up the case of a PC and looked at the components inside?|
I was not referring to the power cord but the box shaped component that the cord plugs into inside the case. That is the powersupply and is what needs to be replaced before you can figure out what else might be wrong.
1. Before opening up the case make sure it is disconnected from mains power
2.check out this tutorial: http://www.fonerbooks.com/r_power.htm
Goin' Fishin' (Some day)