I've got a B&W with a bad power supply. According to this page the only modification that needs to be done to an ATX power supply to make it work in a B&W is to snip the -5V wire. On this page about converting an ATX for a Sawtooth (which has the same pinouts as the B&W) the author instructs to splice the -5V wire to a ground wire and the P.G. wire to a +3.3V wire. The first author makes no mention of the P.G. wire at all. Does anyone know if the second author's splicing instructions are necessary. I've got a Dell ATX PSU which doesn't even have a -5V wire, so if the first author is correct, then I wouldn't need to modify the Dell PSU at all.
I'm inclined to believe the second author more because the first author states on another page here that any ATX powersupply works unmodified in a Beige G3, but when I hook the two ATX powersupplies I have to my Beige G3 neither works at all.
The pinout comparisons can be found here.
I've not found a chart anywhere showing the pinouts for the Beige G3.