> ----- Original Message -----
> From: "Mark Benson" <[EMAIL PROTECTED]>
> To: "Quadlist" <[EMAIL PROTECTED]>
> Sent: Wednesday, May 01, 2002 1:36 PM
> Subject: Re: sad, dead q630!
>
>
> >
> > > I now get a blinking "?" when trying to boot with
> > >nothng connected to the external SCSI port, and the sad, dead mac when
> > >trying to boot from the external SCSI CD-Rom, even when only the CD-Rom
> is
> > >attatched. It still boots fine from the external SCSI HD if I only
> attatch
> > >that drive.
> >
> > When using the CD-ROM drive on the external port make sure it is
> > properly terminated. I got a similar sounding situation when I first
> > tried my hacked together external CD drive on an SE/30 . I whipped
> > the case off and set it to terminate and it was fine after that.
> >
> > The fact that that SAD MAC code translates directly to 'Bus Error'
> > may point to the SCSI bus.
> > --
> > --
> > Mark Benson
> >
> > SilValleyPirate - AIM
> > silicon_valley_pirate_uk - Yahoo!
> >
> > Visit Flat Pack Macs Online:
> > <http://fpm.gotdns.com>
> > Macintosh LC Central
>
I set the external SCSI CD-Rom ID to 1, then it worked fine. I was also
having trouble booting from the external SCSI CD-Rom when it was connected
to my PPC, and when I set the ID to a lower number than the internal SCSI
HD, suddenly it worked fine. I thought that as long as the IDs didn't
conflict, I was set up fine, but now I guess I learn that you should order
the IDs....I set my internal drive to 6 just to make sure I can usually get
to THAT one first in case I have to sometime disconnect things from the
external chain...
I previously tried finding an internal termination jumper on the external
SCSI CD-Rom, but had no luck with finding one clearly marked as the
termination jumper, and the ones I tried yielded no success. I suppose that
logically, there is also the possibility that something was wrong with the
case-mounted ID selector switch so that it was not IDed correctly when 7 was
selected, or that ID 7 is not usable. Oh, poop, come to think of it, that
may have been the problem! I recall that when I set the internal SCSI HD to
7 on the PC, it wouldn't boot, which is why I moved it to 6. Is SCSI ID 7
reserved or somehow unavailable on the Mac's SCSI bus?
Gosh, I feel like an idiot if that's the case and I wasted everyone's
bandwidth with my sad, dead mac...
-Brian
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