Article: Q74871
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:5.x,6.0,6.2,6.21,6.22
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 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22
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SUMMARY
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Leading Edge XT computers are shipped with only Phoenix BIOS and require either
version 3.0 or 3.1 of Phoenix BIOS to set up and run correctly with MS-DOS
version 5.0 or later. A BIOS upgrade is available from Leading Edge directly or
from a Leading Edge distributor. Version 3.11 of Phoenix BIOS (currently the
latest version) should not be used as an upgrade, however, because it does not
work properly with MS-DOS 5.0 or later on a Leading Edge XT computer.
MORE INFORMATION
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Leading Edge has acknowledged that either version 3.0 or 3.1 of Phoenix BIOS is
required on their XT-class computers to work correctly with MS-DOS 5.0 or later.
If an earlier version is used, the Microsoft MS-DOS 5 or later Upgrade will not
install. After SETUP is typed at the command prompt, the cursor appears below
the prompt, and the system hangs, requiring a system restart (both a "cold" and
a "warm" restart usually work). A similar effect also occurs when version 3.11
(the latest release) of Phoenix BIOS is used.
Leading Edge is providing a BIOS upgrade for $45.00. To receive this upgrade,
mail Leading Edge at the address below, and include the model number of the
computer and a money order for $45.00. The upgrade is also available through
Leading Edge distributors (usually at a higher cost than purchasing directly
through Leading Edge.)
If version 3.11 is causing the problem, there is no "downgrade" currently
available. A future release of Phoenix BIOS for the Leading Edge XT might
provide compatibility.
The product included here, Leading Edge XT, is manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise, regarding
this product's performance or reliability.
Additional query words: 5.00 5.00a 5.x 6.00 6.20 6.21 6.22 3rdparty 5.0 5.0a
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Keywords :
Technology : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS500 kbMSDOS500a
Version : MS-DOS:5.x,6.0,6.2,6.21,6.22
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