Re: HELP:Trouble With //GS SCSI Card

[supertimer@aol.com (Supertimer)]

dempson@actrix.gen.nz (David Empson) wrote:

>> SCSI ID of 2 is special to the Apple High Speed SCSI card.  It makes the
>> computer pause on startup to let the drive spin up.
>
>I think this is just Apple's rather poor documentation of a feature.
>
>The Apple High-speed SCSI card polls each possible SCSI ID (apart from
>its own), starting at 7 and going down to 0.  It takes about half a
>second to poll each ID, so the lower you set the drive's SCSI ID, the
>longer it will take the computer to poll it.
>
>(I'm not sure about the "half second" figure - that is from memory, and
>my IIgs has been dismantled so I can't check it.  It might be as much as
>one second per SCSI ID.)
>
>Setting the drive's SCSI ID to 2 gives you something like two seconds
>after the computer starts searching before it will find the drive.  You
>get another second if you set the SCSI ID to 0.
>
>I've always set my SCSI drive to ID 6 (or thereabouts).  I just make
>sure the drive is switched on and spun up (about five seconds) before I
>turn on the computer.

Nope.  I think this is one of those rare instances that I've
figured out something you haven't.  ;-)

I might not have been clear, but I meant setting the SCSI
controller's ID to 2.  Give it a try.  It gives about a 5
second delay BEFORE it starts to poll the SCSI devices.

According to the manual, this feature was to allow the
Apple Scanner to warm up, but it works like a charm for
letting hard drives spin up.

So set the Apple High Speed SCSI card's ID to 2 and
set your hard drive ID to (for example) 6 and see what
happens.