Memory Options - HP ProLiant DL388p User Manual

Memory options

IMPORTANT:
to mix any combination of these DIMMs can cause the server to halt during BIOS initialization.
The memory subsystem in this server can support LRDIMMs, RDIMMs, or UDIMMs:
•
UDIMMs represent the most basic type of memory module and offer lower latency in one DIMM per
channel configurations and (relatively) low power consumption, but are limited in capacity.
•
RDIMMs offer larger capacities than UDIMMs and 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,
RDIMM, or UDIMM, 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
•
Single- and dual-rank PC3-10600 (DDR-1333) UDIMMs operating at up to 1333 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
RDIMM
RDIMM
RDIMM
LRDIMM
UDIMM
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.
Populated DIMM speed (MT/s)
DIMM type DIMM rank
Dual-rank (8 GB)
RDIMM
Single-rank (8 GB) 1600
RDIMM
Dual-rank (16 GB) 1333
RDIMM
Quad-rank (32
LRDIMM
GB)
Dual-rank (8 GB)
UDIMM
* RDIMM supports 1.35V 3DPC at 1066. Third-party memory supports 1.5V 3DPC at 1066 MT/s.
** LRDIMM enables 3 DIMMs per channel. HP SmartMemory supports up to 3DPC at 1066 MT/s at 1.35V. Third-party
memory supports 1.5V only.
† UDIMM is supported at 2DPC at 1333 MT/s using HP SmartMemory only. Third-party memory supports up to 2DPC
at 1066 MT/s.
This server does not support mixing LRDIMMs, RDIMMs, or UDIMMs. Attempting
DIMM rank DIMM capacity
Dual-rank 8 GB
Single-rank 8 GB
Dual-rank 16 GB
Quad-rank 32 GB
Dual-rank 8 GB
1 DIMM per channel
1333
1333**
1333
Native speed (MT/s)
1333
1600
1333
1333
1333
2 DIMMs per channel 3 DIMMs per channel
1333 1066*
1600 1066
1333 1066*
1333** 1066
1333† —
Hardware options installation 46
Voltage
LV
STD
LV
LV
LV