huff@mcclb0.med.nyu.edu (Edward J. Huff) (06/06/91)
I recently installed system 7 on a removable hard drive on one of three IIfx's on an ethernet in our lab. One of the other graduate students was playing around with it, and after a while, he came and asked me what the major chord tone pattern means. I came to look, and sure enough, the screen remained dark during startup. On pressing the reset button, the ordinary chord played, but shortly thereafter, the major chord played. I thought maybe something was wrong with the parameter RAM, but I don't know off hand how to clear it. I looked in the tech note index and in the index to the Mac reference which came with the machine, but no luck. I figured that couldn't be it anyway... the machine was acting flakey earlier, so it must have failed solid now. So I called up the department office to obtain a copy of the original P.O. for proof of purchase and began disassembling the system. I tried it with no SCSI disks attached. Then I got the keys to remove the steel cables, removed the monitor, the ethernet cable, and the cables to the Liquid Light film printer. Next, since I didn't want to take any unnecessary hardware to the dealer, I removed the ethernet card and the Liquid Light card. Then, just for fun, I reconnected the ADB and monitor, and powered on. No major chord! I inserted a 6.0.7 startup disk, and a dialog box about 32 bit mode came up. I clicked "switch back to 24 bit mode" and the Mac came up fine. Then I reconnected the SCSI cable, replaced the ethernet card, loaded system 7, switched to 32 bit mode, restarted, and found that >8 meg was available for one application. Next, I replaced the Liquid Light card and restarted. Major chords again. Conclusion: the declaration ROM labeled "Still Light V2.0 Copyright LiquidLight 1989" is not 32 bit clean.
klingspo@mozart.cs.colostate.edu (Steve Klingsporn) (06/06/91)
In article <1991Jun5.142010.1@mcclb0.med.nyu.edu> huff@mcclb0.med.nyu.edu (Edward J. Huff) writes: >Conclusion: the declaration ROM labeled "Still Light V2.0 >Copyright liquidLight 1989" is not 32 bit clean. Then System 7 didn't "break" your machine, did it? Steve Klingsporn Goof