RE: SCSI questions

[bpvh@shell1.msn.fullfeed.com (Bradley VonHaden)]

John Le Febvre <John@klatch.demon.co.uk> wrote:

>I have just been given a SCSI card for my //e, and have purchased
>a 90Mb SCSI drive to go with it.  I have been told that a card
>prior to a Rev.C will only allow two partitions (max 64Mb).
>
>The card is an Apple card, marked 'Apple II SCSI card', '(c) 1986'
>and p/n 607-0291-A.  There is a ROM marked '341-0437-A (c) Apple
>87' and two other chips marked '341-0415' and '341-0416'.

ROM 341-0437-A is the Rev C rom (latest version) of the Apple SCSI
card.  This card is the forebearer of the Apple Hi-Speed SCSI card.

>Also, where can I get partitioning software from, and am I correct
>in thinking I need a Apple Systems Cable 25-way male to 50-way
>male cable?

Not sure on where you can get the partitioning software.  The card
originally came with its own SCSI utilities on a 5.25 disk.

Any good 25X50 centronics SCSI cable will do the trick.  Here in the
states I would suggest APS Tech cables.

Couple of things: the Apple Rev C is an unterminated card.  If
connecting 1 device, it must be terminated.  If connecting more than
one device, both the first and last SCSI device should be terminated
(the first using a flow-through terminator).  Also, the Apple Rev C
does not supply termination power.  Without proper trmpwr, munged
data will result.  The hd might provide sufficient trmpwr for the
SCSI chain.  Some do, some do not.

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