Chapter 5: Running Setup
5-7
MPS Revision
The settings for this option are 1.1 or 1.4.
C000, 16K Shadow
C400, 16K Shadow
These options specify how the 32 KB of video ROM at C0000h is treated.
The settings are:
Disabled
,
Enabled or Cached
. When set to
Disabled,
the contents of the video ROM are not copied to RAM. When set to
Enabled,
the contents of the video ROM area from C0000h-C7FFFh are
copied (shadowed) from ROM to RAM for faster execution. When set to
Cached
, the contents of the video ROM area from C0000h-C7FFFh are
copied from ROM to RAM, and can be written to or read from cache
memory.
C800, 16K Shadow
CC00, 16K Shadow
D000, 16K Shadow
D400, 16K Shadow
D800, 16K Shadow
DC00, 16K Shadow
These options enable shadowing of the contents of the ROM area named in
the option. The ROM area not used by ISA adapter cards is allocated to PCI
adapter cards. The settings are:
Disabled
,
Enabled or Cached
. When set
to
Disabled,
the contents of the video ROM are not copied to RAM. When
set to
Enabled,
the contents of the video ROM area from C0000h-C7FFFh are
copied (shadowed) from ROM to RAM for faster execution. When set to
Cached,
the contents of the video ROM area from C0000h-C7FFFh are copied
from ROM to RAM and can be written to or read from cache memory.
5-1-3 Chip Set Setup
USB Function
The settings for this option are
Enabled
or
Disabled
. Set this option to
Enabled
to enable the USB (Universal Serial Bus) functions.
USB KB/Mouse Legacy Support
The settings for this option are
Keyboard, Auto, Keyboard+Mouse
or
Dis-
abled
. Set this option to
Enabled
to enable the USB keyboard and mouse.
SERR# (System Error)
The settings for this option are
Enabled
or
Disabled
. Set to
Enabled
to
enable the SERR# signal on the bus. BX asserts this signal to indicate a
system error condition. SERR# is asserted under the following conditions:
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