Hp Smartmemory - HP ProLiant DL388e User Manual

Depending on the processor model, the number of DIMMs installed, and whether LRDIMMs, UDIMMs, or
RDIMMs are installed, the memory clock speed can be reduced to 1333 or 1066 MT/s. Clock speed can
also be reduced when using low-voltage DIMMs.
Supported DIMM specifications
Type
RDIMM
RDIMM
RDIMM
RDIMM
LRDIMM
UDIMM
UDIMM
UDIMM
UDIMM
Populated DIMM speed (MT/s)
Type Rank
Single (8 GB)
RDIMM
Dual (8 GB)
RDIMM
Dual (16 GB)
RDIMM
Quad (32 GB)
LRDIMM
Dual (8 GB)
UDIMM
** LRDIMM enables 2 DPC. HP SmartMemory supports up to 2 DPC at 1333 MT/s at 1.35 V. Third-party memory
supports only 1.5 V.

HP SmartMemory

HP SmartMemory, introduced for Gen8 servers, 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.
Certain performance features are unique with HP SmartMemory. HP SmartMemory 1.35V DDR3-1333
Registered memory is engineered to achieve the same performance level as 1.5V memory. For example,
while the industry supports DDR3-1333 RDIMM at 1.5V, this Gen8 server supports DDR3-1333 RDIMM up
to 3 DIMMs per channel at 1066 MT/s running at 1.35V. This equates to up to 20% less power at the DIMM
level with no performance penalty. In addition, the industry supports UDIMM at 2 DIMMs per channel at
1066 MT/s. HP SmartMemory supports 2 DIMMs per channel at 1333 MT/s, or 25% greater bandwidth.
Rank Capacity
Single 4 GB, 8 GB
Dual 8 GB,16 GB
Single 4 GB
Dual 8 GB, 16 GB
Quad 32 GB
Single 2 GB
Single 2 GB
Dual 4 GB, 8 GB
Dual 4 GB
1 DIMM per channel
1600 MT/s
1600 MT/s
1600 MT/s
1333 MT/s**
1600 MT/s
Native speed
1600 MT/s
1600 MT/s
1333 MT/s
1333 MT/s
1333 MT/s
1333 MT/s
1600 MT/s
1333 MT/s
1600 MT/s
2 DIMMs per channel
1600 MT/s
1600 MT/s
1600 MT/s
1333 MT/s**
1600 MT/s
Hardware options installation 58
Voltage
STD
STD
LV
LV
LV
LV
STD
LV
STD