Processor memory socket
7
8
9
10
11
12
Rank support per memory socket
SR/DR
SR/DR/QR
SR/DR
SR/DR
SR/DR/QR
SR/DR
Population order
B
J
F
D
L
H
Processor memory channel
C
C
C
D
D
D
Population rules
When installing memory modules, observe the following population rules:
Use only HP memory modules listed in this document.
Advanced ECC is not available if x4 and x8 memory modules are mixed in channels (A and B), (C and D), or both, but standard ECC
is still available. Advanced ECC is available if x4 and x8 memory modules are mixed in memory channels (A and C), (B and D), or
both.
No more than two UDIMMs may be installed per channel.
Do not mix UDIMMs and RDIMMs within this server.
Population guidelines
While adhering to the memory population rules ("Population rules" - see above), performance can be improved by following the
guidelines below:
Memory modules may be installed one at a time per processor, but installing two at a time per processor provides for additional
performance, installing four at a time per processor provides for better performance, and installing equal amounts of memory for
both processors provides for best performance.
Install all memory modules of the same speed on the same processor for best performance.
Install all memory modules of the same voltage on the same processor for best power.
Memory bus speed
Depending on the quantity and native speed of memory modules installed, memory bus speeds can be 1600 MHz, 1333 MHz, 1066 MHz,
800 MHz, or 667 MHz. Memory bus speeds can be different for each processor.
To determine memory bus speeds, do the following:
Within RBSU, select the
Power Management Options
menu >
Advanced Power Management Options
menu >
Maximum Memory Bus
Frequency
menu.
Select one of the following menu options:
Auto (default)
- The memory bus speed is set to what is shown in the following table. If the native speed of the installed
memory module is slower than the memory bus speed, the memory bus speed is set to the memory module native speed
QuickSpecs
HP ProLiant DL385 Generation 7 (G7)
Memory
DA - 13594 North America — Version 48 — March 25, 2013
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