The tag on the machine in question specifically says "DP450, blah, blah, blah, gigabit ethernet, etc" it has the power passthrough exposed. The tag has not been messed with either. I had first thought that someone had simply swapped out the motherboard for an earlier one, but the PS wouldn't be compatible. This motherboard doesn't have the power connector for the ADC video card. That means that someone had to have swapped the PS and motherboard, which really doesn't make sense unless they needed a case and this system was dead.