Chapter 3. BISO Setup
26
User’s Manual
The settings are
Enabled
or
Disabled
. The default setting is
Enabled
.
C000, 32K 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 is using the named ROM area, this area is made available to the local bus. 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 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 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.
In the AMIBIOS for the Intel Triton chipset, the E000h page is used as ROM during POST, but shadowing is
disabled and the ROM CS# signal is disabled to make the E000h page available on the local bus.
