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Chapter 3: Maintenance and Component Installation
Memory Support and Installation
Note
: Check the Supermicro website for recommended memory modules.
Important:
Exercise extreme care when installing or removing DIMM modules to prevent any
damage.
Memory Support
The X11DPFR-S(N) supports up to 1536 GB of LRDIMM, Registered DIMM (RDIMM), and
Non-Volatile DIMM (NV-DIMM) DDR4 (288-pin) ECC 2666/2400/2133 Mhz modules in
twelve (12) slots.
Notes:
1. Be sure to use the memory modules of the same type and speed on the motherboard.
Mixing of memory modules of different types and speeds is not allowed.
DDR4 Memory Support for the Intel Xeon 81xx/61xx/51xx/41xx/31xx Series
Processors
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
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
DIMM Population Requirements
For optimal memory performance, follow the tables below when populating memory modules.
Key Parameters for DIMM Configurations
Parameters
Possible Values
Number of Channels
1, 2, 3, 4, 5, or 6
Number of DIMMs per Channel
1DPC (1 DIMM Per Channel)
DIMM Type
RDIMM (w/ECC), LRDIMM, 3DS-LRDIMM
DIMM Construction
non-3DS RDIMM Raw Cards: A/B (2RX4), C (1RX4), D (1RX8), E (2RX8)
3DS RDIMM Raw Cards: A/B (4RX4)
non-3DS LRDIMM Raw Cards: D/E (4RX4)
3DS LRDIMM Raw Cards: A/B (8RX4)