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From: randy@uw-june (William Randy Day)
Newsgroups: net.micro.pc
Subject: IBM/AT and memory > 512k
Message-ID: <148@uw-june>
Date: Fri, 26-Apr-85 20:03:55 EDT
Article-I.D.: uw-june.148
Posted: Fri Apr 26 20:03:55 1985
Date-Received: Mon, 29-Apr-85 00:09:20 EDT
Organization: U of Washington Computer Science
Lines: 14

Our AT has 1 Mbyte of memory in it, 512k on the mother board and one
512k (IBM) expansion board. When running diagnostics, the memory checks
out fine. BUT: DOS refuses to recognize more than 512k of the memory.

Is there anyway to get DOS to recognize at least 640k of memory in the
system? I suspect the problem is that the 512k board is not bank
selected in 64k increments, but can find nothing in the documentation
to confirm or deny the problem.

Thanks,
Randy Day.
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