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Chapter 2 WINBIOS Setup 43
Advanced Setup, Continued
L1/L2 Cache This option sets the type of caching algorithm used by the L1 internal cache
memory on the CPU and the L2 secondary cache memory. The settings are
WriteBack, WriteThru, or Disabled. The Optimal and Fail-Safe default
settings are WriteBack.
System BIOS Cacheable When set to Enabled, the contents of the F0000h system memory
segment can be read from or written to cache memory. The contents of this
memory segment are always copied from the BIOS ROM to system RAM for
faster execution. The settings are Enabled or Disabled. The Optimal default
setting is Enabled. The Fail-Safe default setting is Disabled.
Caching Controller Set this option to Present if a caching controller is installed in the
computer. The settings are Present or Absent. The Optimal and Fail-Safe
default settings are Absent.
Video Shadow C000,32K This option specifies how the 32 KB of video ROM at C0000h is
treated. The settings are:
Setting Description
Disabled
The contents of the video ROM are not copied to RAM.
Enabled
The contents of the video ROM area from C0000h - C7FFFh
are copied (shadowed) from ROM to RAM for faster
execution.
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.
The Optimal default setting is Cached. The Fail-Safe default setting is
Disabled.
Cont’d