User`s manual

Chapter 4: BIOS

4-9

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 of Block 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.

PCI Conﬁ guration

Access the submenu to make changes to the following settings for PCI devices.

Onboard GLAN (Gigabit- LAN) OPROM Conﬁ gure

Enabling this option provides the capability to boot from GLAN. The options

are Disabled and Enabled.

Onboard SCSI OPROM Conﬁ gure (X6DH8-G2+ only)

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