I have a Beige G3 DT, with an XLR8 G4 400 MHz processor upgrade in it. I have the G4 running at 533 MHz, set with jumpers on the ZIF itself, but I have not done anything with the jumpers on the logic board. I want to overclock the bus speed to the 83 MHz limit, but so far I haven't found any clear instructions on how to do this. The instructions that I have found, all adjust the bus speed, the PCI speed and the processor speed. Is there any way to overclock the bus by itself? I have tried overclocking it according to the directions that I found, but it refuses to boot. Can someone please help me?