On Apr 22, 2004, at 07:03 am, Gregg Eshelman wrote:
--- Mark Benson <[EMAIL PROTECTED]> wrote:Can someone clear up a mystery for me...
Someone i was talking to was trying to convince me that all Macs with external SCSI ports have 2 SCSI buses. The thing was he based his argument on the Q950 which is a bit of an exception to most rules.
I was under the impression that, with a few possible exceptions, all 68k MAcs were single bus.
Far as I know, except for the Quadra 900/950. Those Quadras also had an optional dual bus Fast SCSI II PDS card in their server models.
I meant on the board, disregarding the PDS expansion card.
I know all Power Mac 7/8/9x00 are dual bus. All the IDE based Performa-esque machines from the 630 - 6500 are all single bus (as they have IDE they only need 1 SCSI bus). I also know the LC 580 falls into that category. Nubus Powermacs are a bit of a grey area, I thought they were all single SCSI bus but others have told me that (at least) the 7100 is twin, which makes me think the 8100 probably is too. Dunno about the 6100, but the 9150 is for certain.
AFAIK all other 68k machines use a single SCSI bus that serves both the internal header and the external SCSI port. I just wondered if anyone had found that anything 68k other than the 900/950 had dual SCSI buses...
-- Mark Benson
AIM - SilValleyPirate MSN - [EMAIL PROTECTED] Visit FlatPackMacs online: <http://fpm.68kmac.com> Visit my Homepage: <http://homepage.mac.com/markbenson>
"Never send a human to do a machine's job."
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