Date: Thu, 14 May 1998 14:31:43 +0100 From: Matthias Paul Subject: Re: DrDOS+64meg=HDD troubles? To: opendos AT delorie DOT com Reply-to: Matthias DOT Paul AT post DOT rwth-aachen DOT de Message-id: Organization: Rechenzentrum RWTH Aachen Precedence: bulk On Wed, 13 May 1998 Robert Sears asked: > I am having troubles with running DRD 7.02 with 64 megs ram. I have recently > upgraded with 64 megs of EDO when I started to get strange errors on my HDD > stuff like lost file chains, FAT errors, FAT partly distroyed ect.. > [...] > I have tried everything could this be some sort of problem with DR-Dos > accessing large amounts of memory? Hm, strange indeed. But I'm quite sure this problem is not related to DR-DOS or it's memory manager. Since it occured only after you add more RAM to your system, and I have seen some machines running with 64Mb under DR-DOS, it looks as if it's a hardware or setup problem. - Please try if the problem disappears using another OS, just to be sure. - Check voltage settings for your DIMMs (3.3V or 5V), also check other jumper settings for interleave/banking/parity etc. - Please set the DRAM settings in your CMOS SETUP to the slowest possible values. If it then works, try to increase them again as long as the system stays stable. - Your chipset might have a bug not to support 64Mb of RAM, though I have not yet heart of such an effect. - Your power supply might not provide enough power to supply the additional current at constant voltage. Hope it helps, Matthias -------------------------------------------------------------------- Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, GERMANY eMail: Web : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html -------------------------------------------------------------------- Caldera Digital Research Systems/OpenLinux: http://www.caldera.com/ --------------------------------------------------------------------