Supermicro X7DWE User Manual page 64

X7DWE User's Manual
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 opera-
tion. 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
Select Enabled to allow the system to boot from the GLAN1 connection or the GLAN
2 connection. The options are Enabled and Disabled.
Option ROM Replacement
If set to enabled, the user is allowed to select the bootable peripheral device. If a
system hangs during bootup, please change the setting of this item. The options
are Enabled and Disabled.
PCI Parity Error Forwarding
Enable this item to forward the PCI errors that occurs behind the P2P bridges to the
South Bridge, so NMI can be asserted. The options are Enabled and Disabled.
PCI Fast Delayed Transaction
Enable this function to improve the DMA data transfer rate for a PCI 32-bit multi-
media card. The options are Enable and Disabled.
Reset Confi guration Data
If set to Yes, this item clears the Extended System Confi guration Data- (ESCD)
area. The options are Yes and No.
Frequency for PCI-X
This option allows the user to change the bus frequency for the devices installed
in the slot(s) indicated. The options are Auto, PCI 33 MHz, PCI 66 MHz, PCI-X 66
MHz, PCI-X 100 MHz, and PCI-X 133 MHz.
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