HomeBrewLamps

Long story short While modifying my Xbox, I accidentally shorted out the 5 volt rail. Now the thing doesn't turn on. I'm wondering what exactly I killed on the power supply. I checked the fuse near the 120Vinput and it appears to have continuity. I notice basically right next to the wires for 5v there appears to be a regulator or a mosfet. Perhaps it just needs a new mosfet? The short only occurred for less than a second. Personally I find it kindof rediculous how it killed it so quickly but nonetheless. Needs fixing now. Also on another note. I know this is a long shot, but could the power supply from an Xbox Revision 1.0 be rigged into a newer box. I see that the connector for the old Xbox is only 12 pin and the newer one is a 20 pin ATX. What crossed their minds to change over to the ATX power supply?