It's not actually on a bag, but rather the anti-stat foam that came on the back of the mobo.

I just checked the power supply that wasn't doing anything with this mobo by shorting pins 14 and 15 (with nothing else connected to it) and it powers up.

So now it looks like I have a working mobo, 2 working PS (only one of which will power up the mobo) and a working video card that caused the mobo not to work. Arrrgh.