I have a CSPPC/060/233(DCE production) where PPC is defect. There was already one reball with PPC from MAC-card but it seems that this PPC is defect too. There is a problem with MFLOPS. Whole story in that german thread:
http://www.a1k.org/forum/showthread.php?t=10647
I still use that card as MK3 with a CVPPC and UWSCSI. I'm not sure if I should give that card a 2nd try. High risk.