If powerup refuses to start and warpos just hangs, there is probably something wrong with the PPC. Do you have RAM on the CSPPC ? Without RAM the PPC does not work. Does the cooling fan on the PPC still run at full speed ? The PPC might fail or even get damaged if it becomes too hot. Are you sure you've got a CSPPC and not a CSMK3 ? They look very similar. Did you adjust the clock jumpers on the motherboard ? The CSPPC needs both jumpers set to external while other processor cards need them on internal.