I'm trying to upgrade the factory 160mb drive in my Quadra 700 to a newer/faster Quantum Fireball 500mb drive. I primarily want to do this so that I can then put the 160mb IBM drive in the Quadra in my Macintosh SE. In any case, I got the 500mb drive in, and hooked both the 500mb drive and 160mb drive up to my Digital Audio G4 via a SCSI card. I left the 160mb drive set to ID O and termination on, and the 500mb drive set to ID 1 with termination 1. I booted into OS X(apparently I don't have an OS 9 driver for the card I'm using). Both drives were recognized fine, although I did have to initialize the "new" 500mb drive. I formatted it as Mac OS Standard. I then just copied and pasted everything over to the 500mb drive. Just to be safe, I reblessed the system folder on the new drive(at least using the procedure as I understand it) by moving the "system" file into the preferences folder and moving it back out. And, just to double check my work, I powered down the G4, removed the 160mb drive, set the 500mb to ID 0 with termination on, and rebooted. It was recognized and read just fine. Both the Quadra and the SE booted to a disk drive with question mark with the 500mb drive installed. Both booted just fine with the 160mb drive installed. Any ideas as to where I might have gone wrong?