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54 Apollo Motherboard User’s Guide
Advanced Setup,
Continued
System BIOS Shadow Cacheable When this option is set to Enabled, the contents of the F0000h system memory segment
can be read from or written to L2 secondary cache memory. The contents of the F0000h 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.
C000,16K Shadow
C400,16K Shadow
C800,16K Shadow
CC00,16K Shadow
D000,16K Shadow
D400,16K Shadow
D800,16K Shadow
C000,16K Shadow
These options control the location of the contents of the 16KB of ROM beginning at the specified memory
location. The settings are:
Setting Description
Shadow The contents of C0000h - C3FFFh are written to the same
address in system memory (RAM) for faster execution.
Cache The contents of C0000h - C3FFFh are written to the same
address in system memory (RAM) for faster execution.
Also, the contents of the C0000h – C3FFFh RAM area can
be read from and written to cache memory.
Disabled The video ROM is not copied to RAM. The contents of
the video ROM cannot be read from or written to cache
memory.
The default setting is Cache.
Cont’d