User's Manual

Chapter 4: BIOS
4-9
BIOS
setting is Disabled. Set this option to Enabled to permit the
contents of F0000h RAM memory segment to be written to and
read from cache memory.
Processor Serial Number
Intel included a serial number in their Pentium III processors as a unique system
identifier. For privacy reasons, you can disable this setting to prevent the release
of this identifier. The settings for this option are Enabled or Disabled .
C000 Shadow (16K)
C400 Shadow (16K)
C800 Shadow (16K)
CC00 Shadow (16K)
D000 Shadow (16K)
D400 Shadow (16K)
D800 Shadow (16K)
DC00 Shadow (16K)
These options specify how the 32 KB of video ROM at C0000h (or
D0000h) is treated. The settings are: Disabled , Enabled or Cached . The
default is Disabled for all settings except C000 and C400, which are
Cached for default. 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-x7FFFh (or D0000h-D7FFFh) are copied
(shadowed) from ROM to RAM for faster execution. When set to
Cached , the contents of the video ROM area from C0000h-C7FFFh (or
D0000h-D7FFFh) are copied from ROM to RAM, and can be written to or
read from cache memory.
Advanced Chipset 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 .
Graphics Aperture Size
The option specifies the amount of system memory that can be used by
the Accelerated Graphics Port (AGP). The settings are 4 MB, 8 MB, 16
MB, 32 MB, 64 MB, 128 MB or 256 MB.