Siemens Nixdorf D970, Technical Manual

Page: 28 / 120

Settings in BIOS Setup
Advanced menu
18
A26361-D970-Z120-3-7619
Cache System BIOS Area / Cache Video BIOS Area
Requirement: The
Cache
field must be set to
Enabled
.
Cache System BIOS Area
and
Cache Video BIOS Area
lets you specify the BIOS that
should be mapped to the cache. Mapping the BIOS to the cache increases system
performance.
Write Protect
The specified BIOS is mapped to the cache (default entry).
Disabled
The specified BIOS is not mapped to the cache.
Cache DRAM Memory Area - Transmission mode / Main memory in the
cache
Requirement: The
Cache
field must be set to
Enabled
.
Cache DRAM Memory Area
specifies the write access to the cache in the main
memory area.
In write-back mode the processor writes information to the cache and the
information is only written to the main memory if necessary. The information is
only written to the main memory if necessary. Main memory and cache contents
are not identical. In write-back mode the system performance is higher than in
write-through mode.
In write-through-mode the processor writes information to the cache and to the
main memory. Main memory and cache contents are identical.
Write Back
The cache works in write-back mode (default entry).
Write Through
The cache works in write-through mode.
Disabled
The cache is not used for the main memory area.
Cache Memory Regions
Requirement: The
Cache
field must be set to
Enabled
.
Cache Memory Regions
lets you specify the BIOS ROM areas that should be mapped
to the cache. Mapping the BIOS ROM areas to the cache increases system
performance.
Enabled
The relevant ROM area is mapped to the cache.
Disabled
The relevant ROM area is not mapped to the cache (default entry).