Chapter 6: UEFI BIOS
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LLC Dead Line Alloc
LLC. The options are Disable, Enable, and Auto.
Isoc Mode
Select Enable to enable Isochronous support to meet QoS (Quality of Service) require-
ments. This feature is especially important for Virtualization Technology. The options are
Disable, Enable, and Auto.
Memory Conguration
Integrated Memory Controller (iMC)
Enforce POR
Select Enable to enforce POR restrictions on DDR4 frequency and voltage programming.
The options are POR and Disable.
Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory modules.
The options are Auto, 1866, 2000, 2133, 2400, and 2666.
Data Scrambling for NVMDIMM
Select Enable to enable data scrambling to enhance system performance and data in-
tegrity. The options are Auto, Disable, and Enable.
Data Scrambling for DDR4
Use this feature to enable data scrambling for DDR4. The options are Auto, Disable,
and Enable.
tCCD_L Relaxation
Select Auto to get TCDD settings from SPD (Serial Presence Detect) and implement into
memory RC code to improve system reliability. Select Disable for TCCD to follow Intel®
POR. The options are Disable and Auto.
Memory tRWSR Relaxation
Select Enable to use the same tRWSR DDR timing setting among all memory channels,
in which case, the worst case value among all channels will be used. Select Disable to
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