beall@nunki.usc.edu (Judith Beall) (05/05/90)
Is there any way of changing the SCSI ID of an internal drive that comes standard with the Mac SE or SE/30? I guess they all come set to SCSI ID=0 or 1 <I think it's 0>, but I am wondering how I could change that? OR if I can change that.... Thanks
wiseman@Tellabs.COM (Jeff Wiseman) (05/08/90)
In article <9585@chaph.usc.edu> beall@nunki.usc.edu (Judith Beall) writes: > >Is there any way of changing the SCSI ID of an internal drive that comes >standard with the Mac SE or SE/30? I guess they all come set to SCSI ID=0 or >1 <I think it's 0>, but I am wondering how I could change that? From your title line you indicate a 20 meg drive. Nearly all of these drives CAN be changed by a set of "suitcase jumpers" (so called because they look like little suitcases I suppose :-) mounted on the controller board. If this is a normal stock apple 20 meg drive, there is a good chance that it is a 20 Meg Miniscribe of the model 8425 variety. If so just call MINSCRIBE's public tech support at 1-800-356-5333 and ask them which jumper is which. Only problem is that the internal address of 0 (default) typically requires NO jumpers, therefor you need to find some. They also have to be the half height type in order to provide clearance. I went to a local mac repair shop and the guy just gave me 3 (they're pretty dinky). Hope this helps -- Jeff Wiseman: ....uunet!tellab5!wiseman OR wiseman@TELLABS.COM
purcell@sciences.tmc.edu (Guy B. Purcell) (05/09/90)
I'm not too sure you want to do this. According to an article I read on the boot process (& some experimenting on my part to verify this) of the Mac, the machine looks for drives in this order: floppies (any drive), internal HD with ID=0, bootable SCSI device found on bus by a search starting with ID=6 (highest next to the Mac) and going to ID=0. Therefore, if you have an internal drive with ID=0 that you want to be your boot drive, leave it there to prevent the Mac from doing the extra bus search. Guy (purcell@zeus.sdsu.edu)