HP ProLiant DL385p Gen8 User Manual page 53

The memory subsystem in this server can support LRDIMMs or RDIMMs:
•
RDIMMs offer lower latency in one DIMM per channel configurations and (relatively) low power
consumption. They include address parity protection.
•
LRDIMMs support higher densities than single- and dual-rank RDIMMs, and higher speeds than
quad-rank RDIMMs. This support enables you to install more high capacity DIMMs, resulting in higher
system capacities and higher bandwidth.
All types are referred to as DIMMs when the information applies to all types. When specified as LRDIMM or
RDIMM, the information applies to that type only. All memory installed in the server must be the same type.
The server supports the following DIMM speeds:
•
Single- and dual-rank PC3-10600 (DDR-1333) RDIMMs operating at up to 1333 MT/s
•
Single- and dual-rank PC3-12800 (DDR-1600) RDIMMs operating at up to 1600 MT/s
•
Quad-rank PC3L-10600 (DDR3-1333) LRDIMMs, operating as dual-rank DIMMs, at up to 1333 MT/s
Speed, voltage, and capacity
DIMM type DIMM capacity
4 GB
RDIMM
4 GB
RDIMM
4 GB
RDIMM
8 GB
RDIMM
8 GB
RDIMM
8 GB
RDIMM
16 GB
RDIMM
16 GB
RDIMM
32 GB
LRDIMM
Depending on the processor model, the number of DIMMs installed, and the voltage(s) of the DIMMs
installed, the memory clock speed can be reduced from the DIMMs' native speed. See the following tables
for details.
Populated DIMM speed (MT/s), RDIMM
Memory Single-rank
modules or
per Dual-rank
channel
1
1
1
1
2 Single-rank 1600 MHz
2
2 Dual-rank
2
2 mixed
2
3 Single-rank 1600 MHz
3
3 Dual-rank
3
DIMM rank
Single-rank
Single-rank
Single-rank
Single-rank
Dual-rank
Dual-rank
Dual-rank
Dual-rank
Quad-rank
Memory module Memory bus
native speed speed (standard
voltage memory
module)
1600 MHz 1600 MHz
1333 MHz 1333 MHz
1333 MHz
1333 MHz
1600 MHz 1333 MHz
1333 MHz
1600 MHz 1333MHz
1333 MHz
1066 MHz
1333 MHz
1600 MHz 1066 MHz
1333 MHz
Native speed (MT/s)
1600
1333
1333
1600
1333
1333
1600
1333
1333
Memory bus
speed (low
voltage memory
module)
1333 MHz
1333 MHz
1333 MHz
1333 MHz
1333 MHz
1066 MHz
800 MHz
Hardware options installation 53
Voltage
STD 1.5 V
LV 1.35 V
ULV 1.25 V
STD 1.5 V
LV 1.35 V
ULV 1.25 V
STD 1.5 V
LV 1.35 V
LV 1.35 V
Memory bus
speed (ultra low
voltage memory
module)
1333 MHz
1333 MHz
1333 MHz
1066 MHz
1066 MHz
800 MHz
667 MHz