User`s guide

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Chapter 3 - Using SETUP
Memory Shadow
BIOS shadowing copies data from portions of the computer’s slower
ROM (Read-Only Memory) chips into much faster DRAM (system RAM)
chips in system memory. This data can then be read more quickly by the
CPU, so system performance improves. The Memory Shadow subsection
lets you make certain regions of your upper memory (other than that
reserved for basic system and video) available for BIOS shadowing.
System Shadow
This setting is not adjustable. System shadow is always Enabled.
Video Shadow
Enables/disables copying of the video BIOS into RAM. Shadowing the
video BIOS code improves video performance.
Default: Enabled.
Shadow Memory Regions
Allows additional specific memory regions (other than System and Video)
to be shadowed in upper RAM memory. When enabled, any ROM data
located in the specified region will be copied to shadow RAM when you
boot up. Regions are identified by hexadecimal (base 16) addresses.
Default: All specific regions Disabled.
Boot Sequence
Determines what drive the system checks first for an operating system.
Choices are A: then C:, C: then A:, and C: only.
Default: A: then C:.