So I have a 450mHz single processor G4. I bought a used, dual 500mHz processor off eBay - said to be in good working condition/tested. I installed it in my Powermac - pretty straight forward. It now give me a kernel panic upon anything past the grey apple logo. I have tried resetting the PRAM to no avail. It will boot into Open Firmware. Here's a notable line that was recurring in the panic: unresolved kernel trap(cpu 1) alignment DAR Any ideas? Thanks in advance!