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Chapter 3: Maintenance and Component Installation
3.4 Memory
The X12SPM-LN6TF supports up to 2048GB of ECC RDIMM/LRDIMM/LRDIMM 3DS with
speeds of up to 3200MHz in eight slots. Refer to the tables below for the recommended DIMM
population order and additional memory information.
Type
Ranks Per DIMM
and Data Width
Dimm Capacity (GB)
Speed (MT/s); Voltage (V);
Slot Per Channel (SPC) and
DIMM Per Channel (DPC)
*Data below assumes 2 SPC
unless otherwise noted.
1DPC
8 Gb
16 Gb
1.2V
RDIMM
SRx8
8 GB
16 GB
3200
SRx4
16 GB
32 GB
DRx8
16 GB
32 GB
DRx4
32GB
64 GB
RDIMM-3DS
(4R/8R) x4
2H-64F GB
4H-128 GB
2H-128 GB
4H 256 GB
3200
LRDIMM
QRx4
64 GB
128 GB
3200
LRDIMM-3DS
(4R/8R) X4
4H-128 GB
2H-128 GB
4H-256 GB
3200
1 CPU, 8-DIMM Slots
Number of DIMMs
Memory Population Sequence
1
DIMMA1
2
DIMMA1 / DIMME1
4
DIMMA1 / DIMME1 / DIMMC1 / DIMMG1
6
DIMMA1 / DIMME1 / DIMMC1 / DIMMG1 / DIMMB1 / DIMMF1
8
DIMMA1 / DIMME1 / DIMMC1 / DIMMG1 / DIMMB1 / DIMMF1 / DIMMD1 / DIMMH1