Chapter 4: BIOS
4-9
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
DRM (SDROM) or written into L1, L2, L3 cache inside the CPU to speed
up CPU operations . Select "Uncached" to disable this funciton. 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 0-
512K. Select "Write Back" to allow 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 configured 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 configuration with 4GB or more memory. The
options are Enabled and Disabled.
PCI Configuration
Access the submenu to make changes to the following settings for PCI
devices.
Onboard GLAN (Gigabit- LAN) OPROM Configure
Enabling this option provides the capability to boot from GLAN. The
options are Disabled and Enabled.
Onboard SCSI OPROM Configure
Enabling this option provides the capitally to boot from SCSI HDD. The
options are Disabled and Enabled.
Default Primary Video Adapter
This item allows the user to select the Primary Video Adapter between
two adapters instead of selecting among three or more adapters. The
options are Other and Onboard Video.
