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HP ProLiant DL165 G7 Server - Configuring Memory

Overview

Figure 1: Memory slots

HP ProLiant DL165 G7 (all models)

Memory configurations listed do not apply to "Factory Integrated Models".

Standard Memory

4GB (2 x 2GB) PC2-6400 DIMM memory, with Advanced ECC Capabilities memory installed.

Maximum Memory

Up to 246GB memory is available with the optional installation of PC2-8500R-7 Registered DIMM memory kits. Memory should be installed in pairs and matched for optimum performance.

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DDR3 memory population guidelines

Click here to use the Online DDR3 Memory Configuration Tool for detailed memory configuration rules and guidelines .

Some DIMM installation guidelines are summarized below:

  • For servers with twenty-four (24) memory slots

    • There are four (4) channels per processor; eight (8) channels per server

    • There are three (3) DIMM slots for each memory channel; twenty-four (24) total slots

    • Memory channel 1 consists of the three (3) DIMMs that are furthest from the processor

    • Memory channel 4 consists of the three (3) DIMMs that are closest to the processor

  • 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

  • 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 1066 MHz DIMM in channel 1 and 1x 1333 MHz DIMM in channel 2, you still run at 1066 MHz

  • If you install 1x 1066 MHz DIMM in channel 1 and 5x 1333 MHz DIMMs with 1 DIMM Per Channel (DPC) in each of the other channels, you run at 1066 MHz

  • If you install 3DPC in one channel (if applicable) and 1DPC in all other channels, you run at 800 MHz

  • 95 Watt CPU's are required for 1333 MHz DIMM speeds. All other CPU's are capable of up to 1066 MHz

  • References to the above MHz speeds are for the various speeds of DDR3 DIMMs; 1333 refers to DDR3-1333, etc

  • You can only install one quad-rank DIMMs per channel and it must be in the center socket

  • You can only install two UDIMMs per channel; if available, the second (or middle) 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

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DIMM slot and configuration diagrams

DIMM Type
Registered DIMMS (RDIMMs)
Unbuffered with ECC DIMMs (UDIMMs)
DIMM Rank
Single Rank
Dual Rank (2R)
Quad Rank (4R)
Dual Rank (2R)
DIMM Capacity
4GB
2GB
8GB
16GB
2GB
4GB
DIMM Native Speed (MHz)
1333
1333
1333
1066
1333
1333
Voltage
LV/Reg
Reg
LV/Reg
Reg
Reg
Reg
Slots that can be populated
24 slot servers
24
24
24
8
16
16
Maximum capacity (GB)
24 slot servers
96
48
192
2561
32
64
Populated DIMM speed (MHz)
1 DIMM Per Channel
1333
1333
1333
1066
1333
1333
2 DIMM Per Channel
1333
1333
1333
n/a
1333
1333
3 DIMM Per Channel
1333
1066
1066
n/a
n/a
n/a
NOTE: This capacity is achieved by loading 1 16GB in center socket and remaining sockets with 8GB DIMMs.

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Basic memory slot and population diagram

NOTE: Population order; start with "A" first, "B" second, "C" third, etc.
24 DIMM slots (12 per CPU node)
CPU1
CPU2
Sot #
Population order
Population order
Slot #
Chnl 1
1
A
1
A
Chnl 1
2
I
2
I
3
E
3
E
Chnl 2
4
C
4
C
Chnl 2
5
K
5
K
6
G
6
G
Chnl 3
7
B
7
B
Chnl 3
8
J
8
J
9
F
9
F
Chnl 3
10
D
10
D
Chnl 4
11
L
11
L
12
H
12
H
NOTE: Capacity references are rounded to the common Gigabyte values.
  • 2GB = 2048MB
  • 4GB = 4096MB
  • 8GB = 8192MB
  • 16GB = 16384MB

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