Table 37. Memory population rules
Processor
Configuration
Memory population
Memory population information
Single CPU
Optimizer (Independent channel)
population order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Populate in this order, odd amount
allowed.
Mirror population order
{1, 2, 3, 4, 5, 6}, {7, 8, 9, 10, 11, 12} Mirroring is supported with 6 or 12
DIMM slots per CPU.
Single rank spare population order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Populate in this order, odd amount
allowed. Requires two ranks or more
per channel.
Multi rank spare population order
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Populate in this order, odd amount
allowed. Requires three ranks or more
per channel.
Fault resilient population order
{1, 2, 3, 4, 5, 6}, {7, 8, 9, 10, 11, 12} Supported with 6 or 12 DIMM slots
per CPU.
Dual CPU (Starting with
CPU1, CPU1 and CPU2
population should
match)
Optimized (Independent channel)
population order
C1{1}, C2{1}, C1{2}, C2{2}, C1{3},
C2{3}...
Odd amount of DIMM slots per CPU
allowed.
Mirroring population order
C1{1, 2, 3, 4, 5, 6}, C2{1, 2, 3, 4, 5,
6}, C1{7, 8, 9, 10, 11, 12}, C2{7, 8,
9, 10, 11, 12}
Mirroring is supported with 6 or 12
DIMM slots per CPU.
Single rank sparing population order C1{1}, C2{1}, C1{2}, C2{2}, C1{3},
C2{3}...
Populate in this order, odd amount per
CPU allowed. Requires two ranks or
more per channel.
Multi rank spare population order
C1{1}, C2{1}, C1{2}, C2{2}, C1{3},
C2{3}, C1{4}, C2{4}, C1{5},
C2{5}...
Populate in this order, odd amount per
CPU allowed. Requires three ranks or
more per channel.
Fault resilient population order
C1{1, 2, 3, 4, 5, 6}, C2{1, 2, 3, 4, 5,
6}, C1{7, 8, 9, 10, 11, 12}, C2{7, 8,
9, 10, 11, 12}
Supported with 6 or 12 DIMM slots
per CPU.
Identifier
GUID-EC5DF0D1-D6E1-4480-B579-DBD30F5AFD2A
Status
Released
Removing a memory module
Prerequisites
1
Follow the safety guidelines listed in
2
Follow the procedure listed in
Before working inside your system
.
3
If applicable, remove the air shroud.
4
If applicable, remove the mid drive tray.
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 in configurations with mid drive tray, 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.
NOTE:
You must follow the thermal restriction while using DIMM blank. For information about thermal restriction, see the
Thermal restrictions section.
104
Installing and removing system components
