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Subject:
Himem.sys error: unable to control A20 line
From:
Rick van Heyst <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Wed, 10 Feb 1999 16:24:30 -0800
Content-Type:
text/plain
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Greetings,
I'm teaching a computer hardware course at a community college and I
have a bunch of old 486 VESA system boards that my students are learning
on.  I have the same problem with a number of these boards, and so far
have not been able to determine the cause.
The problem is as follows:  When we boot up DOS 6.22 and the Himem.sys
driver is loaded in Config.sys we get the message: "ERROR: Unable to
control A20 line   XMS driver not loaded".
Anyone familiar with this problem?  Thanks in advance for any advice.
-Rick VanHeyst

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