Re: Received Apple SCSI card rev C. I need an opinion

[a2aviator@gmail.com]

The CPU may not boot from the floppy if the hard drive is turned off -
because the SCSI bus is held up looking for it due to the termination
mod and that the termination on the bus is activated, but the drive is
not responding.

If there are jumpers on the drive for "Drive provides term power",
"Bus provides term power" or "terminator disabled", the best way to do
this for maximum compatibility is disable any onboard termination,
pull the resistor packs and use bus powered termination power and an
external terminator on the other connector.

Then if the drive is off, it will boot. As in the scan will pass the
drive.

That ROM 3 board is an early production model, as best I can tell in
the images, the production date is about 8911? (11th week, though the
ROM 3 was released in August with little fanfare, it was expected in
May which puts the 11th week in tune with production ramp up for
introduction. But the May release had some issues, that being ROM and
hardware issues.

If you have one of these 'prototype' (seed release) ROM 3's you can
see the issue by putting in a Transwarp GS and RAMFast SCSI with
plastic diode on the term power. System errors amass on power up.