Path: utzoo!attcan!uunet!ogicse!milton!davisson
From: davisson@milton.u.washington.edu (Gordon Davisson)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Help w/SCSI ID# on Apple 20 Meg Drive?
Message-ID: <9391@milton.u.washington.edu>
Date: 17 Oct 90 04:36:11 GMT
References: <3349@idunno.Princeton.EDU>
Organization: University of Washington, Seattle
Lines: 21

In article <3349@idunno.Princeton.EDU> zimerman@phoenix.Princeton.EDU
(Jacob Ben-david Zimmerman) writes:
>Hi! I have two questions.  The first is:  I have an Apple (originally
>Miniscribe) 20 meg drive taken out of a stock SE.  I am using it in
>conjunction with an internal 40meg in a Mac II.  The problem is, I want
>the 40 meg to boot first.  How do I set the SCSI ID number on the 20 meg
>drive?

This is a MiniScribe 8425SA, right?  (There should be a label on the HDA
somewhere)  I don't have any official documentation, but empirically...
Find the largest square surface-mount chip on the controller board (near
the SCSI connector).  Beside it is a 2x6 array of header pins sticking
up from the board.  The three pairs of pins nearest the SCSI connector
set the SCSI ID.  Putting a shorting block on the first pair of pins
sets the low bit in the SCSI ID, etc.  I don't know that the other three
pairs of pins control.

--
Gordon Davisson
Westwind Computing	(206) 632-8141
4518 University Way NE, Suite 313, Seattle WA 98105