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Chapter 3: Maintenance and Component Installation
Memory
Memory Support
The X11DPU has 24 DIMM slots for up to 6 TB of 3DS Load Reduced DIMM (3DS LRDIMM),
3DS Registered DIMM (3DS RDIMM), or up to 3 TB of Load Reduced DIMM (LRDIMM) with
speeds of up to 2933 MHz. In addition it supports Non-Volatile DIMMs (NV-DIMM) and Intel
Optane DC Persistent Memory (DCPMM).
DDR4 Memory Support for 81xx/61xx/51xx/41xx/31xx Processors
Type
Ranks
Per
DIMM
and
Data
Width
DIMM Capacity (GB)
Speed (MT/s)
One Slot
per Channel
Two Slots
per Channel
DRAM Density
One DIMM
per Channel
One DIMM
per Channel
Two DIMMs
per Channel
4 Gb
8 Gb
1.2 Volts
1.2 Volts
1.2 Volts
RDIMM
SRx4
4 GB
8 GB
2666
2666
2666
SRx8
8 GB
16 GB
DRx8
8 GB
16 GB
DRx4
16 GB
32 GB
RDIMM 3Ds
QRX4
N/A
2H-64GB
8RX4
N/A
4H-128GB
LRDIMM
QRx4
32 GB
64 GB
LRDIMM 3Ds
QRx4
N/A
2H-64GB
8Rx4
N/A
4H-128 GB
DDR4 Memory Support for 82xx/62xx/52xx/42xx/32xx Processors
Type
Ranks
Per
DIMM
and
Data
Width
DIMM Capacity (GB)
Speed (MT/s)
One Slot
per Channel
Two Slots per
Channel
DRAM Density
One DIMM
per Channel
One DIMM
per Channel
Two DIMMs
per Channel
4 Gb* 8 Gb
16 Gb
1.2 Volts
1.2 Volts
1.2 Volts
RDIMM
SRx4
4 GB
8 GB
16 GB
2933**
2933**
2933**
SRx8
8 GB
16 GB
32 GB
DRx8
8 GB
16 GB
32 GB
DRx4
16 GB 32 GB
64 GB
RDIMM 3Ds
QRX4
N/A
2H-64GB
2H-128GB
8RX4
N/A
4H-128GB
4H-256GB
LRDIMM
QRx4
32 GB 64 GB
128 GB
LRDIMM 3Ds
QRx4
N/A
2H-64GB
2H-64GB
8Rx4
N/A
4H-128 GB
4H-256 GB
*4Gb DRAM density is only supported on speeds up to 2666 MT/s
**Only the 82xx and 62xx series support 2933 MT/s; for other processors, memory speed as supported by the CPU.
Check the Supermicro website for possible updates to memory support.