I have an older 450 sawtooth, and after much deliberation, I've figured out that the logic board is fried. Outside, of Apple, it's impossible to find a sawtooth logic board, but there's no shortage of them on ebay. If I bought a p-supply to match, the repair would cost me about $200 less than doing it through apple. But will it work? Another quick question: will a quicksilver power supply (rated at 340 watts) work with a gigabit ethernet board (which uses a 338 watt power supply?. Both use 22pin connectors for the p1cable. I'll find a way to show my gratitude to you guys, thanks.
DZ