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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. Enabling this option can significantly
affect the performance of some option modules and devices, as follows:
C000, 16K Shadow
C400, 16K Shadow
C800, 16K Shadow
CC00, 16K Shadow
D000, 16K Shadow
D400, 16K Shadow
D800, 16K Shadow
DC00, 16K Shadow
These options control the location of the contents of the 16KB of ROM
beginning at the specified memory location. If no adaptor ROM uses the
named ROM area, this area is made available to the local bus. For more
information, refer to Table 7-10 which shows an example for C000, 16K
shadow.
Table 7-10. System BIOS shadow cacheable
Setting
Shadow
The contents of C0000h - C3FFFh are written to the same address in system
memory (RAM) for faster execution.
Cache
The contents of the named ROM area are written to the same address in system
memory (RAM) for faster execution, if an adaptor ROM will be using the
named ROM area. Also, the contents of the RAM area can be read from and
written to cache memory.
Disabled
The ROM is not copied to RAM. The contents of the ROM cannot be read from
or written to cache memory.
Description
WinBIOS Setup types
7-15
7
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