Re: A question about scsi

[dempson@actrix.gen.nz (David Empson)]

Sheane and Bonnie Meikle <action1@telusplanet.net> wrote:

> Ok how do you tell the version of Apple Scsi. I suspect I have a revision c,
> but after looking at the modification faq I'm not to sure. the mod diagram
> shows pin 24 an c16 close to each other, but on the card I have they are on
> opposite ends. The model no. is 607-0291-c which is why I figured its a rev
> c. The only other apple no I find on it is 341-0437-a

I see that Wayne Stewart has already answered the question.  I just
wanted to add one point:

The name "revision C" applies to the firmware, not to the card itself.
The card itself is actually an "Apple SCSI Card", or "Original Apple
SCSI Card" (to distinguish it from the "Apple High-Speed SCSI Card",
also known as the "Apple DMA SCSI Card").

The original Apple SCSI card has three firmware revisions:

341-0112A      Revision A
341-0112B      Revision B
341-0437-A     Revision C

The Apple High-Speed card has only ever had one firmware version.  (I
don't have the number handy without pulling a machine apart.)

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand