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Chapter 3: Maintenance and Component Installation
3.5 Memory
Memory Support
The -P has 48 DIMM slots to support up to 12TB 3DS ECC DDR4-3200:RDIMM/
LRDIMM or 18TB Intel® Optane™ DDR4-2666:DCPMM, RDIMM/LRDIMM//DCPMM. For
validated memory, use our
.
Check the Supermicro website for
possible updates to memory support.
Memory Installation Sequence
Memory for this motherboard is populated using the "Fill First" method. The DIMM slots with
blue release tabs are considered the first DIMM of their channel and those with white release
tabs are the second of the channel. When installing memory modules, be sure to populate
the memory slots with the blue release tabs first and then populate the those with the white
release tabs.
General Memory Population Requirements
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.
2. Using unbalanced memory topology such as populating two DIMMs in one channel while
populating one DIMM in another channel will result in reduced memory performance.
3. Populating memory slots with a pair of DIMM modules of the same type and size will
result in interleaved memory, which will improve memory performance.
DDR4 Memory Support
Type
Ranks Per DIMM
&
Data Width
DIMM Capacity (GB)
Speed (MT/s); Voltage (V); Slots Per Channel (SPC)
and DIMMs Per Channel (DPC)
1DPC (1-DIMM
Per Channel)
2DPC (2-DIMM
Per Channel)
8Gb
16Gb
1.2 V
1.2 V
RDIMM
SRx8
8GB
16GB
3200
3200
SRx4
16GB
32GB
DRx8
16GB
32GB
DRx4
32GB
64GB
RDIMM-3Ds
(4R/8R) x4
2H-64GB
4H-128GB
2H-128GB
4H-256GB
LRDIMM
QRx4
64GB
128GB
3200
3200
LRDIMM-3Ds
(4R/8R) x4
4H-128GB
2H-128GB
4H-256GB
3200
3200