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- Path: sparky!uunet!mcsun!sunic!chalmers.se!etek.chalmers.se!news
- From: janolov@cdg.chalmers.se (Jan-Olov Lantto)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: Help for SCSI Device Problem
- Message-ID: <1992Nov10.105441.19319@etek.chalmers.se>
- Date: 10 Nov 92 10:54:41 GMT
- References: <6919@gemini.cs.nps.navy.mil>
- Sender: news@etek.chalmers.se (USENET News System)
- Organization: Chalmers University of Technology
- Lines: 35
-
- In article <6919@gemini.cs.nps.navy.mil> kuechenm@taurus.cs.nps.navy.mil
- writes:
- >
- > Here's the problem. I got an internal Apple HD SC 20. The drive works
- >fine when I use it in my LCII, so I know that the formatting isn't a problem.
- >The trouble comes when I try to put it in an old external case that used to
- >house a 5 1/4 in hard drive. The power and SCSI connections seem to match and
- >the wires are all continuous, but when I put the 3 1/2 drive into the case and
- >try to get the whole thing to work, it won't. SCSI Probe won't find any
- devices
- >connected to the bus and reports SCSI Bus unterminated even though I have a
- >terminator on the unused SCSI plug of the external case.
- > Any suggestions on what to check or try next would be appreciated via
- >e-mail, rather than posts. Especially, I'm interested in how to change the
- SCSI
- >address on the drive. I suspect that it involves changing the jumpers on the
- >controller board, but I'm not certain.
- > Thanks for any assistance rendered,
- >Dave Kuechenmeister
- >kuechenm@taurus.cs.nps.navy.mil
- >
-
- I would guess that the problem is the SCSI ID. An internal drive is always
- set to ID=0 by the system. If you put this drive into an external case
- without correctly connecting the SCSI selector it will still have ID=0. Does
- your external box have a SCSI ID selector at the back of the case and is it
- correctly connected ?
-
- ***************************************************************************
- * Jan-Olov Lantto - Research Engineer *
- * Dept. of Electrical Power Systems *
- * Chalmers University of Technology *
- * S-412 96, Goteborg, SWEDEN *
- * janolov@cdg.chalmers.se *
- ***************************************************************************
-