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X10DRS-2U/3U/4U Motherboard User’s Manual
MMIO High Size
Use this item to select the high I/O memory size according to memory-address
mapping for the PCH chip. The options are 256G, 128G, 512G, and 1024G.
PCI Devices Option ROM Setting
PCI/PCI X/PCIe Slot 1 OPROM//PCI/PCIX/PCIe Slot 2 OPROM//PCI/PCI X/
PCIe Slot 3 OPROM
Select Enabled to enable Option ROM support to boot the computer using a de-
vice installed on the slot specied by the user. The options are Disabled, Legacy,
and EFI.
Onboard SAS Option ROM
Select Enabled to enable Option ROM support to boot the computer using a
SAS device installed on the slot specied by the user. The options are Disabled,
Legacy, and EFI.
Onboard LAN Option ROM Type
Select Legacy to enable Legacy support for the LAN controller for system boot.
The options are Legacy and EFI.
Onboard LAN 1 Option ROM/Onboard LAN 2 Option ROM//Onboard LAN 3
Option ROM/Onboard Video Option ROM
Use this feature to select the type of device to be installed in a LAN port specied
by the user for system boot. The default setting for LAN1 Option ROM is PXE. The
default settings for LAN2 Option ROM, LAN 3 Option ROM and Onboard Video
Option ROM are Disabled.
VGA Priority
Use this item to select the graphics device to be used as the primary video display
for system boot. The options are Onboard and Oboard.
Network Stack
Select Enabled to enable PXE (Preboot Execution Environment) or UEFI (Uni-
ed Extensible Firmware Interface) for network stack support. The options are
Enabled and Disabled.
IPv4 PXE Support
Select Enabled to enable IPv4 PXE boot support. The options are Disabled and
Enabled.
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