QuickSpecs
DIMM type
DIMM rank
Voltage
1 DIMM per channel
2 DIMMs per channel 3 DIMMs per channel
RDIMM
Single-rank (4 GB)
LV
1333 1066
1066 (1.5V)
*
RDIMM
Single-rank (4 GB)
STD
1333 1333 1066
RDIMM
Single-rank (8 GB)
LV
1333 1066
1066 (1.5V)
*
RDIMM
Single rank (8 GB)
STD
1333 1333 1066
RDIMM
Dual-rank (16 GB)
LV
1333 1066
1066 (1.5V)
*
RDIMM
Dual-rank (16 GB)
STD
1333 1333 1066
LRDIMM
Quad-rank (32GB)
STD
1600 1600 1333
NOTE:
Depending on the number of DIMMs installed, whether LRDIMMs or RDIMMs are installed, and whether the DIMM is operating and
standard or low voltage, the memory clock speed can be reduced to 1333 or 1066 MT/s.
When 3 DIMMS per channel are installed with the LV DIMMS the system will default to standard voltage.
DIMM Classification and Identification
Memory Population Guidelines
To maximize performance, install two memory cartridges per processor and balance the total memory capacity between all
installed processors.
When multiple processors are installed, HP recommends installing the DIMMs in sequential alphabetical order: 4A, 9B, 1C, 12D,
and so on.
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.
Do not mix LRDIMMs with any other DIMM type (RDIMM, LVDIMM).
RDIMM population is limited to a maximum of eight logical ranks per channel. Therefore, only two quad rank RDIMMs are
supported per channel. If there are more than eight physical ranks per channel, LRDIMMs rank multiplication provides support
for three DIMMs per channel.
Lockstep mode requires specific population requirements. See lock-step configuration below for more information.
NOTE:
UDIMMs are not supported. This server does not support mixing LRDIMMs, RDIMMs, or UDIMMs. Attempting to mix any
combination of these DIMMs can cause the server to halt during BIOS initialization.
For detailed memory configuration rules and guidelines, use the Online DDR3 Memory Configuration Tool on the HP website
(
http://www.hp.com/go/ddr3memory-configurator
).
QuickSpecs
HP ProLiant DL580 Generation 8 (Gen8)
Memory
DA - 14743 North America — Version 1 — February 18, 2014
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