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Q94356
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1993-06-05
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ARTICLE-ID:Q94356
TITLE :CMOS Access Causes Dell 486D/50 to Hang with EMM386.EXE
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The information in this article applies to:
- Microsoft MS-DOS operating system version 6.0
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Summary:
When you use the EMM386.EXE HIGHSCAN switch, Dell 486D/50 machines may
stop responding ("hang") when you attempt to access the CMOS (by
pressing CTRL+ALT+ENTER).
Workaround
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To access your CMOS settings on a Dell 486D/50, restart (reboot) the
computer and press the F5 key or press and hold down the SHIFT key to
bypass all commands in your CONFIG.SYS and AUTOEXEC.BAT files. You can
then access your CMOS settings by pressing CTRL+ALT+ENTER. When you
have finished modifying your CMOS settings, restart the computer.
More Information:
The HIGHSCAN switch causes EMM386.EXE to scan the F000-F7FF upper
memory range. On Dell 486D/50 machines, EMM386.EXE detects that this
range is available. You should not have problems using this range on
the Dell 486D/50 except when you attempt to access the CMOS.
Additional reference words: 6.0 6 6.00 DX2 processor freeze lock up