Chapter 4: BIOS
4-9
back directly from the buffer without writing data to the System Memory for fast
CPU data processing and operation. The options are Uncached, Write Through,
Write Protect, and
Write Back
.
Cache Base 512K-640K
If enabled, this feature will allow the data stored in the memory area: 512K-640K
to be cached (written) into a buffer, a storage area in the Static DROM (SDROM)
or written into L1, L2, L3 cache inside the CPU to speed up CPU operations.
Select Uncached to disable this function. Select Write Through to allow data to
be cached into the buffer and written into the system memory at the same time.
Select Write Protect to prevent data from being written into the base memory
area of Block 512-640K. Select Write Back to allow the CPU to write data back
directly from the buffer without writing data to the System Memory for fast CPU
data processing and operation. The options are Uncached, Write Through, Write
Protect, and
Write Back
.
Cache Extended Memory
If enabled, this feature will allow the data stored in the extended memory area to
be cached (written) into a buffer, a storage area in the Static DROM (SDROM)
or written into L1, L2, L3 cache inside the CPU to speed up CPU operations.
Select Uncached to disable this function. Select Write Through to allow data
to be cached into the buffer and written into the system memory at the same
time. Select Write Protect to prevent data from being written into the extended
memory area above 1 MB. Select Write Back to allow the CPU to write data back
directly from the buffer without writing data to the System Memory for fast CPU
data processing and operation. The options are Uncached, Write Through, Write
Protect, and
Write Back
.
Discrete MTRR Allocation
If enabled, MTRRs (-Memory Type Range Registers) are confi gured as distinct,
separate units and cannot be overlapped. If enabled, the user can achieve better
graphic effects when using a Linux graphic driver that requires the write-combining
confi guration with 4GB or more memory. The options are Enabled and
Disabled
.
X
PCI Confi guration
Access the submenu to make changes to the following settings for PCI devices.
Onboard GLAN1/Onboard GLAN2 (Gigabit- LAN) OPROM Confi gure
Enabling this option provides the capability to boot from GLAN. The options are
Disabled
and Enabled.
Default Primary Video Adapter
This feature allows the user to specify which video adapter to be used as the
default primary video adapter--the onboard video adapter or others. The options
are Other and
Onboard Video
.
