Table 26. Memory population rules (continued)
Processor Configuration Memory population Memory population information
Multi rank sparing
population order
A{1}, B{1},
A{2}, B{2},
A{3}, B{3},
A{4}, B{4},
A{5}, B{5},
A{6}, B{6}
● DIMMs must be populated in the order
specified.
● Requires three ranks or more per channel.
Fault resilient population
order
A{1, 2, 3, 4, 5, 6},
B{1, 2, 3, 4, 5, 6},
A{7, 8, 9, 10, 11, 12},
B{7, 8, 9, 10, 11, 12}
Supported with 6 or 12 DIMMs per processor.
Removing a memory module
The procedure for removing a DIMM module, an NVDIMM-N module, and a PMem are identical.
Prerequisites
1. Follow the safety guidelines listed in Safety instructions on page 34.
2. Follow the procedure listed in Before working inside your system on page 35.
CAUTION:
To prevent data loss and potential damage to your system, ensure that your system, LEDs on
system, LEDs on NVDIMM-N and LEDs on NVDIMM-N battery are turned off before removing the NVDIMM-N
battery.
3. If applicable, remove the air shroud.
WARNING:
Allow the memory modules to cool after you power off the system. Handle the memory modules by
the card edges and avoid touching the components or metallic contacts on the memory module.
CAUTION: To ensure proper system cooling, memory module blanks must be installed in any memory socket that
is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
Steps
1. Locate the appropriate memory module socket.
CAUTION:
Handle each memory module only by the card edges, ensuring not to touch the middle of the
memory module or metallic contacts.
2. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket.
3. Lift and remove the memory module from the system.
Figure 39. Removing a memory module
62
Installing and removing system components
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