HP ProLiant BL660c Gen8 Server Blade - Manual (Page 33)

Hardware options installation 33
Speed, voltage, and capacity
DIMM type DIMM rank DIMM capacity Native speed (MT/s) Voltage
RDIMM Single-rank 4 GB 1333 LV
RDIMM Single-rank 4 GB 1600 STD
RDIMM
Single-rank 8 GB 1600 STD
RDIMM Dual-rank 8 GB 1333 LV
RDIMM Dual-rank 8 GB 1600 STD
RDIMM Dual-rank 16 GB 1333 LV
RDIMM
Dual-rank 16 GB 1600 STD
LRDIMM Quad-rank 32 GB 1333 LV
Memory operating data rate is dependent on processor capability, DIMM capability, operating voltage, and
the number of DIMMs installed in a channel.
Populated DIMM speed (MT/s)
DIMM type DIMM rank 1 DIMM per channel 2 DIMMs per channel
RDIMM (LV) Single-rank (4 GB) 1333 1333
RDIMM (STD) Single-rank (4 GB) 1600 1600
RDIMM (STD) Single-rank (8 GB) 1600 1600
RDIMM (LV) Dual-rank (8 GB) 1333 1333
RDIMM (STD) Dual-rank (8 GB) 1600 1600
RDIMM (LV) Dual-rank (16 GB) 1333 1333
RDIMM (STD) Dual-rank (16 GB) 1600 1600
LRDIMM (LV) Quad-rank (32 GB) 1333 1333
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 at
1.35V. This difference equates to up to 20% less power at the DIMM level with no performance penalty.
Memory subsystem architecture
The memory subsystem in this server blade is divided into channels. Each processor supports four channels,
and each channel supports two DIMM slots, as shown in the following table.
Channel Slot Slot number
1 A
E
1
2
2 B
F
3
4