Reference Guide

Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.IntegratedDevices.IntNic2Port4BootProto (Read or Write)
Description
This is a Write-Only attribute to control the Legacy Boot Protocol of the LOM Port specified by the
Integrated Network Card number and port number. This attribute is for system management software
use, and does not appear in System BIOS Setup. This attribute always returns Unknown when read. There
is no change to the LOM Port Legacy Boot Protocol setting when Unknown is written. An error is
returned if written with a setting (None, PXE, or iSCSI) that is not supported by the LOM Port.
Legal Values
● Unknown
● None
● Pxe
● Iscsi
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.IntegratedDevices.IoatEngine (Read or Write)
Description
Enables or disables the I/O Acceleration Technology (I/OAT). I/OAT is a set of DMA features designed to
accelerate network traffic and lower CPU utilization. This feature should be enabled only if the hardware
and software support I/OAT.
Legal Values
● Enabled
● Disabled
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
Dependency Not applicable
BIOS.IntegratedDevices.MemoryMappedIOH (Read or Write)
Description
MMIO base default is 56TB. User should not change the default value unless addressing a known issue.
When set to 12TB, the system will map MMIO base to 12TB. Enable this feature for an OS that requires
44bit PCIe addressing. When set to 512GB, the system will map MMIO base to 512GB, and reduce the
maximum support for memory to less than 512GB. Enable this option only for the 4 GPU DGMA issue.
Legal Values
● 512GB
● 12TB
● 56TB
Default Value Not Applicable
Write Privilege Server Control
License Required iDRAC Express or iDRAC Enterprise
108 BIOS Attributes