Okay, the only way I got it to boot up is by holding down the OPTION key on startup. It only sees my old 6 gig Apple HD and not the other two drives. My Primary master drive is a 33 GB, primary slave 6 GB, secondary master is my CD rom drive and secondary slave a 28 GB HD. So it boots from CD or the 6 GB drive but won't see the other two. They used to work in this same Mac.

Bert