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Chapter 3: Maintenance and Component Installation
Memory Installation
Memory Support
The X11DPH-T supports up to 4TB of Registered DIMM (RDIMM) or 3DS LRDIMM DDR4-
2933 ECC memory (and up to four Intel Optane DCPMMs) in 16 DIMM slots. The black DIMM
slots are reserved for future NVDIMM support. Populating the DIMM slots in a 2DPC (two
DIMMs per channel) configuration with pairs of memory modules of the same type, speed
and size will result in interleaved memory, which improves performance.
Note:
2933 MHz memory is supported by the 82xx/62xx/52xx platform only. Only Platinum-
level and Gold-level processors support Intel Optane
TM
DC Persistent Memory Module
(DCPMM).
Notes:
1. When installing DIMMs in a 2DPC memory configuration, first populate the blue
memory slot, which is the first slot of a channel, followed by the black slot. 2. Using an
unbalanced memory topology by installing two DIMMs in one channel while installing one
DIMM in another channel will result in reduced memory performance. 3. Memory speed is
dependent on the type of processors used in your system..
Installing Memory
Begin by removing power from the system as described in Section 3.1 and removing the
cover as described in Section 3.2.
1. Starting with DIMMA1, push the release tabs outwards on both ends of the DIMM slot to
unlock it.
2. Align the key of the DIMM with the receptive point on the memory slot and with your
thumbs on both ends of the module, press it straight down into the slot until the module
snaps into place.
3. Press the release tabs to the locked position to secure the DIMM module into the slot.
Repeat for other DIMM slots as needed in the following order:
4. Insert DIMMs into the slots in the following order: DIMMA1, DIMMB1, DIMMC1,
DIMMD1, DIMME1, DIMMF1, DIMMA2, and DIMMD2. Use memory modules of the
same type and speed.
5. To remove a DIMM, unlock the release tabs then pull the DIMM from the memory slot.
Caution:
Exercise extreme caution when installing or removing memory modules to prevent
any possible damage to the DIMMs or slots.
Warning:
In dual-CPU configurations, memory must be installed in the DIMM slots associated
with the installed CPUs.
Note:
Visit the product page on the Supermicro website for possible updates to memory
