Article: Q73323
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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Some Packard-Bell 8086 machines running MS-DOS versions 3.x have a utility
called SPEED.COM that changes the clock speed of the processor from the standard
4.77 megahertz to 8 or 9 megahertz, depending upon the model. This utility must
be copied into the new DOS directory from either the OLD_DOS.1 directory or the
original DOS 3.x floppy disks.
MORE INFORMATION
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SPEED.COM does not require addition to the SETVER table, but the MS-DOS 5.0 or
later Setup program does not recognize SPEED.COM as an add-in utility that must
remain in the DOS directory. Therefore, it must be manually copied to the DOS
directory.
Many Packard-Bell 8086 machines have this command in the AUTOEXEC.BAT file.
MS-DOS 5.0 or later Setup does not place this command in the new AUTOEXEC.BAT,
so you may notice decidedly slower performance when upgrading to MS-DOS 5.0 or
later. Copying SPEED.COM into the DOS directory and adding SPEED.COM to
AUTOEXEC.BAT should correct the problem.
The products included here are manufactured by a vendor independent of Microsoft;
we make no warranty, implied or otherwise, regarding these products' performance
or reliability.
Additional query words: 6.22 5.00 6.00 5.00a oem hardware 3rdparty
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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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