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Article #29153

Hard drive problems

#29153
From: DrapalME
Date: Mon, 09 Nov 1987 02:13
39 lines
1857 bytes
	Well, I'm at an impasse with this silly drive, and am asking for
	any help...  What I have:

		1) A working 20Mb Supra drive with an internal Rodime SCSI
		   drive.
		2) A bare 20Mb drive that I hope to soon have working as
		   a secondary drive.
		3) An ADAPTEC 4070 SCSI to RLL controller.
	
	What I've tried:

		1) I have replaced the 50-conductor internal SCSI cable in
		   the Supra drive with a cable similar but with yet another
		   50-pin SCSI connector which attached to the ADAPTEC 4070.
		2) 20-pin and 34-pin cables between the ADAPTEC 4070 and the
		   new drive.
		3) The Adaptec 4070 has been selected as SCSI ID #1.
	
	The symptoms:

		1) When the SCSI cable to the ADAPTEC controller is
		   disconnected, the Supra drive works fine.
		2) When the SCSI cable to the ADAPTEC controller is connected,
		   the BUSY light on the Supra remains lit, and the Supra will
		   not spin up or function at all.  The second drive will not
		   spin up or function either.

	I recently saw an article in the ASTUN newsletter that was written
	by someone at Supra, regarding attaching additional drives to their
	controllers.  Unfortunately, I can't seem to lay my hands on that
	now.

	Any suggestions or hints would be greatly appreciated.

						Myron Drapal
						AT&T
						Denver, Co.
						..!ihnp4!drutx!druhi!med
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From: med@druhi.ATT.COM (DrapalME)
Newsgroups: comp.sys.atari.st
Subject: Hard drive problems
Message-ID: <2351@druhi.ATT.COM>
Date: Sun, 8-Nov-87 21:13:35 EST
Article-I.D.: druhi.2351
Posted: Sun Nov  8 21:13:35 1987
Date-Received: Fri, 13-Nov-87 06:49:55 EST
Distribution: comp
Organization: AT&T, Denver, CO
Lines: 39