• Before installing DCPMMs and DRAM DIMMs, refer to “DC Persistent Memory Module (DCPMM) setup”
on page 40
and make sure to meet all the requirements.
• To verify if the presently installed processors support DCPMMs, examine the four digits in the processor
description. Only the processors with description meeting both of the following requirements support
DCPMMs.
– The first digit is 5 or a larger number.
– The second digit is 2.
Example: Intel Xeon 5215L and Intel Xeon Platinum 8260M
If the presently installed processors do not support DCPMMs, replace them with the processors that
support DCPMMs.
• Supported memory capacity range varies with the following types of DCPMMs.
– Large memory tier (L): The processors with L after the four digits (for example: Intel Xeon 5215L)
support up to 4.5 TB of memory capacity per processor
– Medium memory tier (M): The processors with M after the four digits (for example: Intel Xeon Platinum
8260M) support up to 2 TB of memory capacity per processor
– Other: Other processors that support DCPMMs (for example: Intel Xeon Gold 5222) support up to 1 TB
of memory capacity per processor
Install an I/O expansion adapter
Use this information to install an I/O expansion adapter option.
Before you install an I/O expansion adapter, complete the following steps:
1. Read
“Installation Guidelines” on page 28 to ensure that you work safely.
2. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the
bezel pointing toward you.
3. Remove the compute node cover (see
“Remove the compute node cover” on page 32 for instructions).
This component can be installed as an optional device or as a CRU. The installation procedure is the same
for the optional device and the CRU.
Attention: When installing an I/O adapter in one of the I/O expansion connectors, make sure the numbers in
the Hexagon and Pentagon on the I/O expansion connector (see the service labeling on top of the compute
node cover for details) corresponds to the particular shape and numbering of the I/O module bay on the Flex
chassis (see the bay labeling along the top and bottom edges of the chassis rear for details). If the correlation
is incorrect, communication with the chassis may fail.
Chapter 3. Compute node hardware setup 41
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