HP ProLiant ML150 Quickspecs page 29

QuickSpecs
Memory
HP ProLiant ML150 G6 Memory Population Guidelines
NOTE: Memory configurations listed do not apply to "Factory Integrated Models".
NOTE: Charts do not represent all possible memory configurations. Memory must be populated in one of the following ways.
For detailed memory configuration rules and guidelines, please use the Online DDR3 Memory Configuration Tool:
www.hp.com/go/ddr3memory-configurator
Some DIMM installation guidelines are summarized below:
For the HP ProLiant ML150 G6 server with twelve (12) memory slots
There are three (3) channels per processor; six (6) channels per server
There are two (2) DIMM slots for each memory channel; twelve (12) total slots
Memory channel 1 consists of the two (2) DIMMs that are closest to the processor
Memory channel 3 consists of the two (2) DIMMs that are furthest from the processor
DIMM slots that are white should be populated first
Do not mix Unbuffered memory (UDIMMs) with Registered memory (RDIMMs)
Do not install DIMMs if the corresponding processor is not installed
If only one processor is installed in a 2CPU system, only half of the DIMM slots are available
To maximize performance, balance the total memory capacity between all installed processors
It is not required, but it is recommended to load the channels similarly if possible
You can only have up to eight (8) ranks installed per channel
You can only install two quad-rank DIMMs per channel
You can only install two UDIMMs per channel; if available, the third slot in the channel must remain empty
Populate DIMMs from heaviest load (quad-rank) to lightest load (single-rank) within a channel
Heaviest load (DIMM with most ranks) within a channel goes furthest from the chipset
For memory mirroring mode, channel 3 must be unpopulated. Channels 1 and 2 are populated identically
For lock-step mode, channel 3 must be unpopulated. DIMMs in channels 1 and 2 will be installed in pairs.
The paired slots will be 1,4; 2,5; 3;6 on a 3DPC system or 1,4; 2,5; on a 2DPC system
No mixing DIMM voltage; all DIMMs must be the same voltage
DIMM Type
DIMM Rank
DIMM Capacity
DIMM Native Speed (MHz)
SLOTS THAT CAN BE POPULATED
12 slot servers
MAXIMUM CAPACITY (GB)
12 slot servers
POPULATED DIMM SPEED (MHz)
1 DIMM Per Channel
2 DIMM Per Channel
* - not supported by HP at this time.
NOTES:
Mixing DIMM speeds is allowed, but the system processor speed rules always override the DIMM capabilities
If you do mix DIMM speeds, the memory bus will default to the minimum clock rate of all DIMMs in the system - even if the slower
DIMM is on the other processor
Registered DIMMs (RDIMMs)
Dual Rank (2R)
2GB 4GB
1333 1333
12 12
24 48
1333 1333
1066 1066
DA - 13249 North America — Version 33 — September 24, 2012
HP ProLiant ML150 Generation 6 (G6)
Quad Rank (4R) Single Rank (1R)
2GB 1GB
* 1333
* 12
* 12
* 1333
* 1066
Unbuffered DIMMs (UDIMMs)
Dual Rank (2R)
2GB 2GB
* 1333
* 12
* 24
* 1333
* 1066
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4GB
1333
12
48
1333
1066