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HP ProLiant DL380 G7 Server - Configuring Memory

DDR3 memory population guidelines

NOTE: Memory configurations listed do not apply to Factory Integrated Models.

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

Some DIMM installation guidelines are summarized below:

  • 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
  • If any Quad rank DIMMs are installed, all channels are limited to only 2 DIMMs 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
  • If mixing DIMM voltage is a requirement, please note that the DIMMs will run at 1.5V since all 1.35V are capable of supporting 1.5V operations
DIMM slot/capacity/populated speed table
DIMM Type
Registered DIMMS (RDIMMs)
Unbuffered with ECC DIMMs (UDIMMs)
DIMM Rank
Single Rank (1R)
Dual Rank (2R)
Quad Rank (4R)
Single Rank (1R
Dual Rank (2R)
DIMM Capacity
4GB
2GB
4GB
8GB
8GB
4GB
16GB
1GB
2GB
4GB
DIMM Native Speed (MHz)
1333
1333
1333
1067
1333
1067
1067
1333
1333
1333
Voltage
LV/Reg
Reg
Reg
Reg
LV/Reg
Reg
Reg
Reg
Reg
Reg
Slots that can be populated
18 slot servers
18
18
18
18
18
12
12
12
12
12
Maximum capacity (GB)
72
36
72
144
144
48
192
12
24
48
Populated DIMM speed (MHz)
1 DIMM Per Channel
1333
1333
1333
1067
1333
1067
1067
1333
1333
1333
2 DIMM Per Channel
13331
13331
13331
1067
13331
800
800
1333
1333
10661
3 DIMM Per Channel
800
800
800
800
800
n/a
n/a
n/a
n/a
n/a
NOTE:
  1. supported with ROM update via ROM Based Setup Utility (RBSU). UDIMM support is only on 12-slot servers
NOTE:
  • 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 1066MHz
  • 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 1333MHz DIMM speeds. All other CPU's are capable of up to 1067 MHz
  • References to the above MHz speeds are for the various speeds of DDR3 DIMMs; 1333 refers to DDR3-1333, etc.

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Basic memory slot and population diagram

NOTE: Population order; start with "A" first, "B" second, "C" third, etc.
18 DIMM SLOTS (9 per CPU node)
CPU1
CPU2
slot #
population order
slot #
population order
Chnl 1
Chnl 1
1
G
1
G
2
D
2
D
3
A
3
A
Chnl 2
4
H
4
H
Chnl 2
5
E
5
E
6
B
6
B
Chnl 3
7
I
7
I
Chnl 3
8
F
8
F
9
C
9
C

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Standard memory configuration (1 CPU model)

NOTE: 6GB, consisting of three (3) 2GB dual-rank PC3-10600 RDIMMs
CPU1
CPU2
slot #
population order
slot #
population order
Chnl 1
Chnl 1
1
G; empty
1
G; empty
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; 2GB DIMM
9
C; empty

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Standard memory plus optional memory (1 CPU model)

NOTE:
  • 54GB, consisting of three (3) 2GB RDIMMs plus six (6) 8GB RDIMMs
    • 3x 2GB dual-rank PC3-10600 RDIMMs
    • 6x 8GB dual-rank PC3-8500 RDIMMs
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 (1 CPU model)

NOTE: 96GB, consisting of six (6) 16GB quad-rank PC3-8500 RDIMMs
CPU1
CPU2
slot #
population order
slot #
population order
Chnl 1
1
G; empty
1
G; empty
Chnl 1
2
D; 16GB DIMM
2
D; empty
3
A; 16GB DIMM
3
A; empty
Chnl 2
4
H; empty
4
H; empty
Chnl 2
5
E; 16GB DIMM
5
E; empty
6
B; 16GB DIMM
6
B; empty
Chnl 3
7
I; empty
7
I; empty
Chnl 3
8
F; 16GB DIMM
8
F; empty
9
C; 16GB DIMM
9
C; empty

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UDIMM maximum configuration (1 CPU model)

NOTE: 12GB, consisting of six (6) 2GB dual-rank PC3-10600 UDIMMs
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 (2 CPU model)

NOTE: 192GB, consisting of twelve (12) 16GB quad-rank PC3-8500 RDIMMs
CPU1
CPU2
slot #
population order
slot #
population order
Chnl 1
1
G; empty
1
G; empty
Chnl 1
2
D; 16GB DIMM
2
D; 16GB DIMM
3
A; 16GB DIMM
3
A; 16GB DIMM
Chnl 2
4
H; empty
4
H; empty
Chnl 2
5
E; 16GB DIMM
5
E; 16GB DIMM
6
B; 16GB DIMM
6
B; 16GB DIMM
Chnl 3
7
I; empty
7
I; empty
Chnl 3
8
F; 16GB DIMM
8
F; 16GB DIMM
9
C; 16GB DIMM
9
C; 16GB DIMM

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UDIMM maximum configuration

NOTE: 48GB, consisting of twelve (12) 4GB dual-rank PC3-10600 UDIMMs
CPU1
CPU2
slot #
population order
slot #
population order
Chnl 1
1
G; empty
1
G; empty
Chnl 1
2
D; 4GB DIMM
2
D; 4GB DIMM
3
A; 4GB DIMM
3
A; 4GB DIMM
Chnl 2
4
H; empty
4
H; empty
Chnl 2
5
E; 4GB DIMM
5
E; 4GB DIMM
6
B; 4GB DIMM
6
B; 4GB DIMM
Chnl 3
7
I; empty
7
I; empty
Chnl 3
8
F; 4GB DIMM
8
F; 4GB DIMM
9
C; 4GB DIMM
9
C; 4GB DIMM
NOTE: Capacity references are rounded to the common Gigabyte values.
  • 1GB = 1024MB
  • 2GB = 2048MB
  • 4GB = 4096MB
  • 8GB = 8192MB
  • 16GB = 16384MB

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