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SuperServer E300-9D User's Manual
SNC
Sub NUMA Clustering (SNC) is a feature that breaks up the Last Level Cache (LLC) into
clusters based on address range. Each cluster is connected to a subset of the memory
controller. Enabling SNC improves average latency and reduces memory access conges-
tion to achieve higher performance. Select Auto for 1-cluster or 2-clusters depending on
IMC interleave. Select Enable for Full SNC (2-clusters and 1-way IMC interleave). The
options are Disable, Enable, and Auto.
Isoc Mode
Isochronous (Isoc) mode allows time-sensitive processes to be given priority. The options
are Disable, Enable, and Auto.
Memory Configuration
Enforce POR
Select POR (Plan of Record) to enforce POR restrictions on DDR4 frequency and volt-
age 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, 2133, 2400, and 2666.
Data Scrambling for DDR4
Use this feature to enable or disable data scrambling for DDR4 memory. The options
are Auto, Disable, and Enable.
tCCD_L Relaxation
Select Auto to get TCDD settings from SPD (Serial Presence Detect) into memory RC
code to improve system reliability. Select Disable for TCCD to follow Intel POR. The op-
tions are Disable and Auto.
2X REFRESH
Use this feature to select the memory controller refresh rate to 2x refresh mode. The
options are Auto and Enable.
Memory Topology
This feature displays the information of onboard memory modules detected by the
BIOS.
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