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Chapter 3: Maintenance and Component Installation
3.5 Memory
Memory Support
The X12SPW-F/TF 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.
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
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 other-
wise 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