On Apr 19, 2005, at 2:38 PM, RobertCBuitron wrote: > I'm seeking an explanation and help to resolve a problem I have with a > "disappearing" HD. I have a G4 mirrored doors drive, 10.3.x OS. I > added two Maxtor 300GB HDs and a controller card (ACard).[...] Could > it be the kind of cable connecting HD to the ACard. Perhaps. If it's parallel ATA, and if the HD is configured for CS (cable select), then the cable must support CS. If it doesn't, the HD must be configured as either master or slave, depending on the what's available. <0x0192>