Datasheet
4-10
PDSM4+/PDSME+ User's Manual
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.
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.
Onboard SCSI OPROM Confi gure
Enabling this option provides the capitally to boot from SCSI HDD. The options
are Disabled and Enabled.
Reset Confi guration Data
If set to Yes, this setting clears the Extended System Confi guration Data- (ESCD)
area. The options are Yes and No.
Frequency for PPCI-X#1-#2/SCSI
This option allows the user to change the bus frequency for the devices installed
in the slot indicated. The options are Auto, PCI 33 MHz, PCI 66 MHz, PCI-X 66
MHz, PCI-X 100 MHz, and PCI-X 133 MHz.
Slot1 PCI-X 100 MHz ZCR, Slot2 PCI-X 100MHz, Slot3 PCI-Exp x4,
Slot4 PCI-X 133MHz, Slot5 PCI-X 133MHz, and Slot6 PCI-Exp x8
Access the submenu for each of the settings above to make changes to the
following: