IBM Internal CDROMs, Quad Speed

[freqmax]

Disabled termination and termination power on HDD?

Anyway check with your SCSI application from floppy which units that show up at all.

Btw, some SCSI units show up at all LUN(s) .. bad thing.

[freqmax]

Work from the bottom up:
 * Does all units have correct power? +5V +12V
 * Do the controller have termination and the last unit?, and everything else is without.
 * Is termination power removed from all but the last unit? and of the correct polarity? (some braindamage designs out there!)
 * Do all units show up with correct ID and LUN in your software SCSI tool (booting from floppy) ?
 * Is the correct driver for harddisc (scsi-hdd) and cd-rom (scsi-cd) being used?
 * AmigaOS makes use of these drivers?
 * CD-disc is of iso9660 format?
 * Filesystem driver is iso9660 ?
 * Can you list any directory from CLI ?

(once again reminded why computers can be a pain in the ass - but M$ is just pain )

[freqmax]

I know some SCSI drives for 8-bit SE mode will short circuit eachother if termination power (TRMPWR) is jumpered on both units. Now that is a a design fault.

Btw, I would like to read what the fault was..