Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!ucsd!scubed!dan From: dan@s3sol.scubed (Dan Peterka) Newsgroups: comp.sys.mac.hardware Subject: Confirmation needed on monitor and disk compatibility Message-ID: Date: 24 Jan 91 17:43:56 GMT Sender: usenet@scubed.SCUBED.COM Distribution: comp Organization: S-CUBED, A Division of Maxwell Labs; San Diego CA Lines: 58 We recently bought a whole bunch of IIsi machines and needed to reconfigure a few of them to take advantage of existing equipment. Prior to the arrival of the IIsi's we had an old SE's drive die and we had bought a generic 40MB internal SCSI drive as a replacement. It turned out to be a Connor 3040 and it worked right out of the box. We were happy to see that the IIsi's had these same drives which we needed to remove from a couple of them so that they could be used as classified WP machines (using Syquests). Great! we'll use the drives as spares! Well, the day soon came when another SE died. We could not get the Connor 3040 drive from the IIsi to work on this box; eventhough it easily worked on any IIsi we choose to hook it to. On the SE, it could not be seen on the SCSI bus at all - no amount of fiddling with terminators, SCSI ID's, and 'advanced' disk partitioning software made any difference. We shrugged our collective shoulders and ended up buying a CMS external to get going again. A month or so later, another SE died. Being tenacious fellows, we decided to see if we can get the Connor drive into it again. Lo and behold, it works! No problem at all - didn't even reformat it. The only difference is that this is an SE with an FDHD - unlike the previous unit. Question Set #1: What is going on here? Has Apple changed their SCSI bus between SE's and SE/FDHD's? Why did the first Conner drive work? Are Conner's built into Apple equipment different than off the street units? Our second IIsi experience had to due with moving a color monitor from a IIcx to a IIsi. Apple video is Apple video, right? Wrong, because our 3rd party color monitors (a NEC MacSync and a Sony 1302 multiscan) would not work on the IIsi. We don't have any IIci machines, so I'm not sure if this would also be a problem there. My *guess* on this problem is that the built-in video board needs to sense something about the monitor in order to determine whether it is connected to a 12" color, a 13" color, portrait, or 13" mono monitor. Apple video boards in IIcx boxes assume 13" displays only. Question Set #2: What is the IIsi video card looking at? Is it built into the cable or the monitor? Thank you for your support.... -- _________________________________________________________________________ Dan Peterka S-CUBED 3398 Carmel Mtn Rd. dan@scubed.scubed.com (619) 587-8338 San Diego, CA 92121 _________________________________________________________________________