Mike, I had this identical problem of mixed up IDs. It was just a weird. I tried changing jumpers, switching HDs around, etc. I finally used TechTool Pro 3, zapped the pram, rebuilt the desktop and optimized with all the boxes checked. When I restarted every drive including external showed up in their proper positions.
You do have to make sure that all your externals use IDs other than 0, 1, 3 or 7 and the last one is terminated. Zhmmy ----Original Message Follows---- From: Mike <[EMAIL PROTECTED]> Reply-To: <[EMAIL PROTECTED]> (PCI PowerMacs) To: <[EMAIL PROTECTED]> (PCI PowerMacs) Subject: Re: Now I've really done it...(2) Date: Mon, 27 Aug 1956 22:36:12 -0400 > >-My 8500 SCSI HD is Bus 0, ID 0 and CD-ROM ID 3 >>-External Zip on Bus1, ID 6 >>-ATA Maxtor at last check was on Bus 2, ID 2 (according to ASP and >>Drive Setup) but ID, 0 according to SCSI Probe. I'm quite sure it was >>ID'd as "0" by ASP back when I first installed it, too. I could not >>find jumper settings yesterday that would give it a ID of "0" by >>ASP. I want it set as a master. Nothing else is connected to that >>ATA bus. Adrian wrote: >Some thoughts > >So bus zero is the internal bus and has two drives. Bus one has only the >zip drive. Yes, the internal SCSI bus has a one GB HD and CD-ROM >Bus two is through a PCI card with one ATA/IDE drive. Correct >Have you tried the Interface card in different slots? Please understand that everything was working fine for almost three months. I switched between the two drives as the start up drive several times early on until I just stayed on the new Maxtor with a new 9.1 installed up until a crash which made me decide to try and go back to my older drive with 8.6 which had given me virtually no problems for a long time. The Ultratek 66 card worked in every slot but I have three PCI cards assigned in a particular order because my newer USB card (installed about the same time) would only work correctly in the top slot. I really have no reason to suspect the ATA card. > How is termination >handled. On the drive or the card or is there a potential for both to be >terminated ? Don't really know, that is part of what I was asking, too. It was my understanding that an ATA card, especially with only one drive connected doesn't have termination issues like a real SCSI bus. > Also might a jumper on the card be changing the drive ID ? There are no jumpers on the card and even if there were, nothing was changed to precipitate the problem. I did, however, switch the Maxtor HD connector cable to the second of two available connectors on the card but only well after the problems persisted. I suspect selecting one connector over the other could change the drive ID. > >What does the Maxtor do when you boot with the shift key down ? Don't know can't do it. The Maxtor has not been seen by the computer other than as an unmounted (and so far unmountable) drive since it disappeared earlier this week. As of late yesterday after attempting to mount it and a resulting crash, my computer will not boot correctly either from my SCSI HD or from a CD as long as the HD power connector is attached to the back of the Maxtor. It may look like everything is loading OK but after the extensions the screen goes to a blank desktop pattern with only a cursor. Can't power down or do anything. If I am trying to boot from a system CD I get to the desktop pattern with the date/time clock (stuck at whatever the boot time was) and the little watch cursor...indefinitely. If I disconnect power to the Maxtor I can boot off my SCSI or a CD and everything works fine. I started this reply two hours ago but stopped and did a battery of new tests and all the basics, PRAM and even CUDA reset. Swapped to the other (originally used) connector on the Ultratek. No change. Mike -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... 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