Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!philabs!seismo!hao!hplabs!sri-unix!RMS.G.EH%MIT-OZ@mit-mc From: RMS.G.EH%MIT-OZ%mit-mc@sri-unix.UUCP Newsgroups: net.micro.cpm Subject: Problem with Heath Z37 controller and Tandon TM-100-4 drives Message-ID: <2291@sri-arpa.UUCP> Date: Fri, 17-Jun-83 19:05:00 EDT Article-I.D.: sri-arpa.2291 Posted: Fri Jun 17 19:05:00 1983 Date-Received: Mon, 20-Jun-83 04:25:19 EDT Lines: 17 From: Edward HuangHello, When running Heath/Zenith CP/M with the Z37-89 DD controller and Tandon TM-100-4 drives, I often get BDOS SELECT errors. Notice that this Tandon drive was brought from an outside dealer NOT from Heath [Heath jacks up the price on outside things they sell in their stores]. The drive is rated for 3ms seek - those Bdos error SELECT happen during warm boot @ 6ms When I increased the speed to 12 ms step, the errors went away as well as all those soft errors I didnt know about. (see SECERR counter in Heath BIOS listing - they give you # of soft errors and retries) Does any-one know what is wrong?? Is it because I used a non-Heath drive or what? Thank you very much, -Ed RMS.G.EH@MIT-OZ via MIT-MC