Hardware options installation 46
DIMM type DIMM rank DIMM capacity Native speed (MT/s)
RDIMM
Single-rank 8 GB 2133
RDIMM
Dual-rank 16 GB 2133
Quad-rank 32 GB 2133
Depending on the processor model, the number of DIMMs installed, and whether LRDIMMs or RDIMMs are
installed, the memory clock speed can be reduced to 1600 MT/s.
Populated DIMM speed (MT/s)
DIMM type DIMM rank 1 DIMM per channel 2 DIMMs per channel 3 DIMMs per channel
RDIMM
Single-rank (8 GB)
2133 2133 1600
RDIMM
Dual-rank (16 GB)
2133 2133 1600
LRDIMM
Quad-rank (32
GB)
2133 2133 1600
For more information about product features, specifications, options, configurations, and compatibility, see
the product QuickSpecs on the HP website (http://www.hp.com/go/qs).
HP SmartMemory
HP SmartMemory authenticates and unlocks certain features available only on HP Qualified memory and
verifies whether installed memory has passed HP qualification and test processes. Qualified memory is
performance-tuned for HP ProLiant and BladeSystem servers and provides future enhanced support through
HP Active Health and manageability software.
Memory subsystem architecture
The memory subsystem in this server is divided into channels. Each processor supports four channels, and
each channel supports three DIMM slots, as shown in the following table.
Channel Population order Slot number
1
A
E
I
12
11
10
2
B
F
J
9
8
7
3
C
G
K
1
2
3
4
D
H
L
4
5
6
For the location of the slot numbers, see "DIMM slot locations (on page 18)."
This multi-channel architecture provides enhanced performance in Advanced ECC mode. This architecture
also enables Online Spare Memory mode.
DIMM slots in this server are identified by number and by letter. Letters identify the population order. Slot
numbers indicate the DIMM slot ID for spare replacement.