Memory; Memory Support; General Guidelines For Optimizing Memory Performance - Supermicro SuperServer 5019C-M4L User Manual

Memory

Note: Check the Supermicro website for recommended memory modules.

Memory Support

The X11SCL-LN4F supports up to 128 GB of unbuffered (UDIMM) DDR4 (288-pin) ECC
memory (2-DIMM per channel) with speeds of up to 2666MHz in four memory slots. Refer
to the tables below for the recommended DIMM population order and additional memory
information.
Ranks Per
DIMM
DIMM and
Type
Data Width
SR
Unbuffered
DDR4 ECC
DR

General Guidelines for Optimizing Memory Performance

•
The blue slots must be populated first.
•
Always use DDR4 memory of the same type, size, and speed.
•
Mixed DIMM speeds can be installed. However, all DIMMs will run at the speed of the
slowest DIMM.
•
The motherboard will support odd-numbered modules. However, to achieve the best
memory performance, a balanced memory population is recommended.
Chapter 3: Maintenance and Component Installation
DIMM Capacity
(GB)
DRAM Density
4GB 8GB
16GB 32GB
(4x 4GB DIMMs) (4x 8GB DIMMs)
32GB 64GB
(4x 8GB DIMMs) (4x 16GB DIMMs)
31
Speed (MT/s), Voltage (V),
Slot Per Channel (SPC),
and DIMM Per Channel (DPC)
2 Slots Per Channel
1DPC 2DPC
1.2V 1.2V
2666 2666