Hello, I hope I've posted this in the right place. I've got a power PC G4 with a single 450 mhz processer, 256 mb ram and a bus speed of 100 mhz. I bought a dual 450 mhz processor from e bay with the hope of fitting it and making my mac a little faster. I connected it up and it won't work, the computer will not boot up. I've currently put my original processer back in which is working fine. The dual processer came from a G4 as well. Should this processor work or is it not compatible with my mac? Any help wpuold be appreciated, thanks in advance! Alex.