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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!newsstand.cit.cornell.edu!piccolo.cit.cornell.edu!crux3!jmk3
- From: jmk3@crux3.cit.cornell.edu (Jay M. Krell)
- Subject: Re: SyQuest and Apple DMA SCSI card
- Message-ID: <jmk3.721868154@crux1.cit.cornell.edu>
- Sender: news@piccolo.cit.cornell.edu (USENET News System)
- Nntp-Posting-Host: crux3.cit.cornell.edu
- Organization: Cornell Information Technologies
- References: <83oauB6w165w@bluemoon.use.com>
- Date: 15 Nov 92 22:55:54 GMT
- Lines: 45
-
- >From: slhood@bluemoon.use.com (Stephen L. Hood)
- >Subject: SyQuest and Apple DMA SCSI card
-
- >I have an Apple DMA SCSI card in my ROM 01 IIGS. I am using a SyQuest 44
- >megabyte removable hard drive and a Quantum 85 megabyte hard drive with
- >this card. After several severe headaches, I was able to get both drives
- >working together (and with the proper partition booting first) by manually
- >yanking all internal resistors and terminating the chain externally. The
- >system now boots the Quantum 85 properly.
-
- Steve,
- I've got a similar setup, 44 MB SyQuest and 40 MB Quantum ProDrive. Each
- drive worked seperately with their interal terminators. Strange thing is that
- daisy-chained with the last one externally terminated (internal term removed),
- they only work in one order. In the other order, the system is very flaky,
- indicating termination problems.
-
- >ProDOS 8 hangs if Syquest has no cart.
-
- I have the same problem. It doesn't happen if the Syquest is off, which is
- usually the case for me. For what its worth, I reported this to
- apple.bugs@applelink.apple.com as a ProDOS 8 bug.
-
-
- >2. From GS/OS, it usually takes two to three tries before the GS
- >recognizes an inserted cartridge. Since inserting a cartridge and waiting
- >for it to spin up to speed takes over 15 seconds, this gets to be
-
- The only GS/OS problem I have is that a cart must be in during boot for the
- drive to be recognized. Insertions and ejections are recognized immediately
- provided the drive is being polled, as in Finder, Standard File dialogs, and
- new apps that call HandleDiskInsert in their event loop.
-
- >I'm pretty sure this is the fault of the Apple DMA SCSI card, which I know
- >isn't exactly the best at handling removable media. My question, then, is
-
- The Rev C card had problems with removable media, but the DMA card is supposed
- to have fixed them.
-
- >is there a GS/OS driver available for the SyQuest and the DMA SCSI
-
- I think not.
-
- --Jay, jay.krell@cornell.edu
-
-