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Chapter 2: Installation
Memory Support
The X11DPG-OT-CPU supports up to 3TB 3DS Load Reduced DIMM (3DS LRDIMM) Load
Reduced DIMM (LRDIMM), 3DS Registered DIMM (3DS RDIMM) Registered DIMM (RDIMM),
DDR4 (288-pin) ECC 2666/2400/2133 MHz memory modules in 24 slots. Populating these
DIMM modules with a pair of memory modules of the same type and size will result in
interleaved memory, which will improve memory performance.
Notes:
1. Please follow the DIMM population tables listed in this chapter to install the
DIMM modules on your motherboard. 2. Using an unbalanced memory topology by
installing two DIMMs in one channel while installing one DIMM in another channel will
result in reduced memory performance. 3. Memory speed is dependent on the type of
processors used in your system.
2.4 Memory Support and Installation
Warning!
Exercise extreme care when installing or removing DIMM modules to prevent any
possible damage. Check the Supermicro website for recommended memory modules.
DDR4 Memory Support (for 1-Slot Per-Channel Confi guration)
Type
Ranks
Per
DIMM
and Data
Width
DIMM Capacity
(GB)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
1 Slot per Channel
1DPC (1-DIMM per Channel)
4 Gb
8 Gb
1.2 V
RDIMM
SRx4
8 GB
16 GB
2666
RDIMM
SRx8
4 GB
8 GB
2666
RDIMM
DRx8
8 GB
16 GB
2666
RDIMM
DRx4
16 GB
32 GB
2666
RDIMM 3DS
QRX4
N/A
2H-64GB
2666
RDIMM 3DS
8RX4
N/A
4H-128GB
2666
LRDIMM
QRx4
32 GB
64 GB
2666
LRDIMM
3DS
QRX4
N/A
2H-64GB
2666
8Rx4
N/A
4H-128 GB
2666
DDR4 Memory Support (for 2-Slot Per-Channel Confi guration)
Type
Ranks
Per
DIMM
and Data
Width
DIMM Capacity
(GB)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
2 Slots per Channel
1DPC (1-DIMM per Channel)
2DPC (2-DIMM per Channel)
4 Gb
8 Gb
1.2 V
1.2 V
RDIMM
SRx4
8 GB
16 GB
2666
2666
RDIMM
SRx8
4 GB
8 GB
2666
2666
RDIMM
DRx8
8 GB
16 GB
2666
2666
RDIMM
DRx4
16 GB
32 GB
2666
2666
RDIMM 3DS
QRX4
N/A
2H-64GB
2666
2666
RDIMM 3DS
8RX4
N/A
4H-128GB
2666
2666
LRDIMM
QRx4
32 GB
64 GB
2666
2666
LRDIMM
3DS
QRX4
N/A
2H-64GB
2666
2666
8Rx4
N/A
4H-128 GB
2666
2666
