Owners Manual

Table 9. Memory population rules
Processor Configuration Memory population Memory population information
Single rank sparing population
order
1, 2, 3, 4, 5, 6, 7, 8 Populate in this order, odd amount
per processor allowed. Requires
two ranks or more per channel.
Multi rank sparing population
order
1, 2, 3, 4, 5, 6, 7, 8 Populate in this order, odd amount
per processor allowed. Requires
three ranks or more per channel.
Fault resilient population order {1, 2, 3, 4, 5, 6} Supported with 6 DIMMs per
processor.
Dual processor (Start
with processor1.
processor1 and
processor 2
population should
match)
Optimized (Independent
channel) population order
A{1}, B{1}, A{2}, B{2}, A{4},
B{4}, A{5}, B{5}
Odd amount of DIMMs per
processor allowed.
Mirroring population order
A{1,2,3,4,5,6},
B{1,2,3,4,5,6}
Mirroring is supported with 6
DIMMs per processor.
Single rank sparing population
order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}…
Populate in this order, odd amount
per processor allowed. Requires
two ranks or more per channel.
Multi rank spare population
order
A{1}, B{1}, A{2}, B{2}, A{3},
B{3}…
Populate in this order, odd amount
per processor allowed. 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}
Supported with 6 DIMMs per
processor.
Removing a memory module
The procedure for removing a DIMM module and an NVDIMM-N module is identical.
Prerequisites
1. Follow the safety guidelines listed in Safety instructions.
2. Follow the procedure listed in Before working inside your system.
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. 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.
Installing and removing enclosure components
33