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Q103557: HIMEM.SYS Fails to See More than 64 MB on EISA Machine

Article: Q103557
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:4.01,5.x,6.0,6.2,6.21; WINDOWS:3.1,3.11
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 4.01, 5.0, 5.0a, 6.0, 6.2, 6.21 
- Microsoft Windows versions 3.1, 3.11 
- Microsoft Windows for Workgroups version 3.1 
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SYMPTOMS
========

Versions of HIMEM.SYS earlier than 3.10 may not recognize more than 64 megabytes
(MB) of memory on EISA bus computers.

CAUSE
=====

This is because HIMEM.SYS does not recognize EISA memory blocks that start
between 64 MB and 65 MB. On these machines, HIMEM.SYS only sees 64 MB of
memory.

NOTE: MS-DOS 6.2 and Windows for Workgroups version 3.11 provide HIMEM.SYS
version 3.10.

Additional query words: 6.0 5.0 5.00 5.00a 3.1

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Keywords          :  
Technology        : kbAudDeveloper kbWin3xSearch kbWFWSearch kbZNotKeyword3 kbWin310 kbWin311 kbWFW310 kbMSDOSSearch kbMSDOS621 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS401 kbMSDOS500a
Version           : MS-DOS:4.01,5.x,6.0,6.2,6.21; WINDOWS:3.1,3.11

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