Article View: comp.sys.ibm.pc.misc
Article #773missing upper memory blo
From: Alan Motsinger
Date: Wed, 08 Apr 1992 00:57
Date: Wed, 08 Apr 1992 00:57
42 lines
2063 bytes
2063 bytes
.>
L.>I am looking for the answer for the following problem:
L.>Recently I bought a 486/33 PC with 4M RAM running DOS 5.0.
L.>I checked memory using mem/c and the following is the result:
L
L.>Conventional Memory :
L.>
L.> Name Size in Decimal Size in Hex
L.>------------- --------------------- -------------
L
L.>Total FREE : 604368 (590.2K)
L.>
L.>Upper Memory :
L.>
L.> Name Size in Decimal Size in Hex
L.>------------- --------------------- -------------
L.>Total FREE : 5160 ( 5.0K)
L.>
L*********************************************************************
L.>
L.>Every thing seems fine except some upper memory blocks are missing (?)
L.>From what I understand (reading the DOS 5.0 manual), I should have
L.>1024 k - 640 k = 384 k upper memory blocks. But the output of mem/c
L.>command only showed 191.8 k (160 + 22.4 + 4.1 + 0.3 + 5.0).
L.>I am confused. Help please.
Where do I begin. First, you won't get a full 384K. Some of that memory
address is for video and some may be retained for the BIOS. I get over
200K in this area but that is just a guide. For your convenience, I am
following with my MEM/C (I get 629.1K of conventional free and I load
absolutely everything in UMB), CONFIG.SYS, and AUTOEXEC.BAT.
___
X WinQwk 1.30 #0 X Unregistered Evaluation Copy
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Path: arc1-ca.pugleaf.net!sparky!uunet!sybus.sybus.com!myrddin!pdn!tct!psycho!f230.n3603.z1.FIDONET.ORG!Alan.Motsinger From: Alan.Motsinger@f230.n3603.z1.FIDONET.ORG (Alan Motsinger) Sender: ufgate@psycho.fidonet.org (newsout1.24) Newsgroups: comp.sys.ibm.pc.misc Subject: missing upper memory blo Message-ID: <67911.29E2626A@psycho.fidonet.org> Date: Tue, 07 Apr 92 20:57:00 EDT Organization: FidoNet node 1:3603/230 - CSFSO Telecomm, Clearwater FL