Bull NovaScale R422-E1, Installation And User Manual

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Chapter 7: BIOS
7-9
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 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
Select Enabled to allow the system to boot from the GLAN1 connection or the
GLAN 2 connection. The options are Enabled and Disabled.
Onboard Storage OPROM Confi gure
Select Enabled to allow the system to boot from the IPMI 3rd-LAN connection.
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 default
setting is Onboard .
PCI Fast Delayed Transaction
Enable this function to improve the DMA data transfer rate for a PCI 32-bit
multimedia card. The options are Enable and Disabled .
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 .