HP memory 4GB RDIMM rfb
NOTE: All DDR3 memory option kits consist of one DIMM per kit. For detailed memory configuration rules and guidelines, please use the Online DDR3 Memory Configuration Tool: www.hp.com/go/ddr3memory-configurator.
DIMM installation rules:
- For servers with eighteen (18) memory slots:
- There are three (3) channels per processor; six (6) channels per server
- There are three (3) DIMM slots for each memory channel; eighteen (18) total slots
- Memory channel 1 consists of the three (3) DIMMs that are closest to the processor
- Memory channel 3 consists of the three (3) 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 slot/capacity/populated speed table | | DIMM Type -> | Registered Dimms (RDIMMs) | Unbuffered with ECC DIMMs (UDIMMs) | | DIMM Rank -> | Dual Rank (2R) | Quad Rank (4R) | Single Rank (1R) | Dual Rank (2R) | | DIMM Capacity -> | 2GB | 4GB | 8GB | 2GB | 4GB | 8GB | 1GB | 2GB | 1GB | 2GB | | DIMM Native Speed (MHz) -> | 1333 | 1333 | 1066 | * | 1066 | * | 1333 | * | * | 1333 | | | | | | | | | | | | | | SLOTS THAT CAN BE POPULATED | | 18/12 slot servers | 18 | 18 | 18 | * | 12 | * | 12 | * | * | 12 | | | | | | | | * | | | | | | MAXIMUM CAPACITY (GB) | | 18/12 slot servers | 36 | 72 | 144 | * | 48 | * | 12 | * | * | 24 | | | | | | | | | | | | | | POPULATED DIMM SPEED (MHz) | | 1 DIMM Per Channel | 1333 | 1333 | 1066 | * | 1066 | * | 1333 | * | * | 1333 | | 2 DIMM Per Channel | 1066 | 1066 | 1066 | * | 800 | * | 1066 | * | * | 1066 | | 3 DIMM Per Channel | 800 | 800 | 800 | * | * | * | * | * | * | * | | * - 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
- If you install 1x 1066MHz DIMM in channel 1 and 1x 1333MHz DIMM in channel 2, you still run at 1066MHz
- If you install 1x 1066MHz DIMM in channel 1 and 5x 1333MHz DIMMs with 1 DIMM Per Channel (DPC) in each of the other channels, you run at 1066MHz
- If you install 3DPC in one channel (if applicable) and 1DPC in all other channels, you run at 800MHz
- 95 Watt CPU's are required for 1333MHz DIMM speeds. All other CPU's are capable of up to 1066MHz
- References to the above MHz speeds are for the various speeds of DDR3 DIMMs; 1333 refers to DDR3-1333, etc.
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| DIMM slot and configuration diagrams |
| Basic memory slot & population diagram - Population order; start with "A" first, "B" second, "C" third, etc.
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| 18 DIMM SLOTS (9 per CPU node) | | | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 0 | 1 | G | 1 | G | Chnl 0 | | 2 | D | 2 | D | | 3 | A | 3 | A | | | | | | | | | Chnl 1 | 4 | H | 4 | H | Chnl 1 | | 5 | E | 5 | E | | 6 | B | 6 | B | | | | | | | | | Chnl 2 | 7 | I | 7 | I | Chnl 2 | | 8 | F | 8 | F | | 9 | C | 9 | C | |
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| Standard memory configuration (1 CPU model) - 4GB, consisting of three (2) 2GB dual-rank PC3-10600 RDIMMs (Base model)
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; empty | 1 | G; empty | Chnl 1 | | 2 | D; empty | 2 | D; empty | | 3 | A; 2GB DIMM | 3 | A; empty | | | | | | | | | Chnl 2 | 4 | H; empty | 4 | H; empty | Chnl 2 | | 5 | E; empty | 5 | E; empty | | 6 | B; 2GB DIMM | 6 | B; empty | | | | | | | | | Chnl 3 | 7 | I; empty | 7 | I; empty | Chnl 3 | | 8 | F; empty | 8 | F; empty | | 9 | C; empty | 9 | C; empty | |
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| Standard memory plus optional memory (1 CPU model) - 60GB, consisting of two (2) 2GB RDIMMs plus seven (7) 8GB RDIMMs
- 2x 2GB dual-rank PC3-10600 RDIMMs
- 7x 8GB dual-rank PC3-8500 RDIMMs
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; 8GB DIMM | 1 | G; empty | Chnl 1 | | 2 | D; 8GB DIMM | 2 | D; empty | | 3 | A; 2GB DIMM | 3 | A; empty | | | | | | | | | Chnl 2 | 4 | H; 8GB DIMM | 4 | H; empty | Chnl 2 | | 5 | E; 8GB DIMM | 5 | E; empty | | 6 | B; 2GB DIMM | 6 | B; empty | | | | | | | | | Chnl 3 | 7 | I; 8GB DIMM | 7 | I; empty | Chnl 3 | | 8 | F; 8GB DIMM | 8 | F; empty | | 9 | C; 2GB DIMM | 9 | C; empty | |
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| Standard memory replaced with optional memory (1 CPU model)
RDIMM maximum configuration - 72GB, consisting of nine (9) 8GB dual-rank PC3-8500 RDIMMs
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; 8GB DIMM | 1 | G; empty | Chnl 1 | | 2 | D; 8GB DIMM | 2 | D; empty | | 3 | A; 8GB DIMM | 3 | A; empty | | | | | | | | | Chnl 2 | 4 | H; 8GB DIMM | 4 | H; empty | Chnl 2 | | 5 | E; 8GB DIMM | 5 | E; empty | | 6 | B; 8GB DIMM | 6 | B; empty | | | | | | | | | Chnl 3 | 7
| I; 8GB DIMM
| 7 | I; empty | Chnl 3 | | 8 | F; 8GB DIMM
| 8 | F; empty | |
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| UDIMM maximum configuration (1 CPU model) - 12GB, consisting of six (6) 2GB dual-rank PC3-10600 UDIMMs
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; empty | 1 | G; empty | Chnl 1 | | 2 | D; 2GB DIMM | 2 | D; empty | | 3 | A; 2GB DIMM | 3 | A; empty | | | | | | | | | Chnl 2 | 4 | H; empty | 4 | H; empty | Chnl 2 | | 5 | E; 2GB DIMM | 5 | E; empty | | 6 | B; 2GB DIMM | 6 | B; empty | | | | | | | | | Chnl 3 | 7 | I; empty | 7 | I; empty | Chnl 3 | | 8 | F; 2GB DIMM | 8 | F; empty | | 9 | C; 2GB DIMM | 9 | C; empty | |
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| Standard memory replaced with optional memory (2 CPU model)
RDIMM maximum configuration - 144GB, consisting of eighteen (18) 8GB dual-rank PC3-8500 RDIMMs
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; 8GB DIMM | 1 | G; 8GB DIMM | Chnl 1 | | 2 | D; 8GB DIMM | 2 | D; 8GB DIMM | | 3 | A; 8GB DIMM | 3 | A; 8GB DIMM | | | | | | | | | Chnl 2 | 4 | H; 8GB DIMM | 4 | H; 8GB DIMM | Chnl 2 | | 5 | E; 8GB DIMM | 5 | E; 8GB DIMM | | 6 | B; 8GB DIMM | 6 | B; 8GB DIMM | | | | | | | | | Chnl 3 | 7 | I; 8GB DIMM | 7 | I; 8GB DIMM | Chnl 3 | | 8 | F; 8GB DIMM | 8 | F; 8GB DIMM | | 9 | C; 8GB DIMM | 9 | C; 8GB DIMM | |
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| UDIMM maximum configuration (2 CPU model) - 24GB, consisting of twelve (12) 2GB dual-rank PC3-10600 UDIMMs
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| | CPU1 | CPU2 | | | | slot # | population order | slot # | population order | | | Chnl 1 | 1 | G; empty | 1 | G; empty | Chnl 1 | | 2 | D; 2GB DIMM | 2 | D; 2GB DIMM | | 3 | A; 2GB DIMM | 3 | A; 2GB DIMM | | | | | | | | | Chnl 2 | 4 | H; empty | 4 | H; empty | Chnl 2 | | 5 | E; 2GB DIMM | 5 | E; 2GB DIMM | | 6 | B; 2GB DIMM | 6 | B; 2GB DIMM | | | | | | | | | Chnl 3 | 7 | I; empty | 7 | I; empty | Chnl 3 | | 8 | F; 2GB DIMM | 8 | F; 2GB DIMM | | 9 | C; 2GB DIMM | 9 | C; 2GB DIMM | |
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