man, i gave one of those away about 10 years ago....well, partial trade, anyways...... was mint, too. basically, the punch45 is an old school cheater that could be viably pushed around 300+ the hd has an upgraded power supply to handle the push. i don't remember the specifics on how to accomplish that, nor if it involves the little gains on the board that you have to open to access, but it's main value would come as a collectors piece, and yours doesn't sound like it fairs well in that area, but pics would help.