I have a Quicksilver motherboard (M8359) that works fine with a 450MHz G4 processor from a Sawtooth machine, but whenever I try to use a quicksilver cpu it will not boot at all. The motherboard light goes on, the fans start blowing, but the hard drives and CD drive won't spin. I tried resetting the PMU, and I tested it with both an 867 MHz quicksilver and a 733 MHz one. I'm baffled. PPalazzo.