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Mail Archives: opendos/1998/05/14/17:51:37

Date: Thu, 14 May 1998 14:31:43 +0100
From: Matthias Paul <PAUL-MA AT reze-1 DOT rz DOT rwth-aachen DOT de>
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: <ED6D916694@reze-1.rz.rwth-aachen.de>
Organization: Rechenzentrum RWTH Aachen

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
 
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