From: "Matthias Paul" Organization: Rechenzentrum RWTH Aachen To: opendos AT delorie DOT com Date: Fri, 7 Jul 2000 18:38:36 +0100 Subject: Re: DR-DOS upper memory problem X-mailer: Pegasus Mail v3.22 Message-ID: <4DE3EE7E35@reze-1.rz.rwth-aachen.de> Reply-To: opendos AT delorie DOT com On Thu, 06 Jul 2000 Mike Sensney wrote: > I think you identified the real problem in your first line: > >I've been using an old Packard Bell 486 > > It is difficult to judge the reliability of any software running on flakey > hardware. Hm, DR DOS EMM386 should support any kind of machine, even if it's not 100% compatible. If there's an incompatibility somewhere it's good to know about it. I don't know if I can help, but I'd like to go into this a little, as it is quite well defined how to detect ROMs. If you send a private email with your configuration files, MEM /A outputs, exact version numbers of DR DOS issue, memory manager, ROM-BIOS, and a memory dump from A000h..FFF0h (of course without any memory manager loaded ;-), and anything else that might help, I will have a look. One thing to try: Load MS-DOS HIMEM before loading DR DOS EMM386.EXE. (This will give a warning, because it's a sub-optimal configuration, but I'd like to know if this fixes your problem). The MS HIMEM.SYS driver probably uses different detection methods for non-standard hardware then the DR DOS memory managers. Matthias ------------------------------------------------------------------- Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany eMail: Web : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html -------------------------------------------------------------------