System information

Chapter 1
Overview and Common Procedures—Server Upgrade
Overview
13
Memory Upgrade Procedures
The HP 9000 rp3410 or HP 9000 rp3440 server includes 12 DIMM connectors (slots) on the system board.
Memory DIMMs are installed in pairs (groups of two) or quads (groups of four). You may replace any or all of
the DIMMs within a server or install additional DIMMs to increase server memory.
Memory usage in the HP 9000 rp3410 server varies with the model designation. In the original server (model
A7136A), memory is installed as one or two pairs in the first quad (group of four). This allows memory
configurations of two, four, eight, or 12 DIMMs. In the current server (model A7136B), memory must be
installed as quads (groups of four). This allows memory configurations of four, eight, or 12 DIMMs. Thus, the
HP 9000 rp3410 server may include a minimum of 512 MB (model A7136A) or 1 GB (model A7136B) and may
include up to six GB of memory in combinations of 256-MB, 512-MB, and 1-GB DIMMs. Different size DIMMs
may be installed in the server, but all four DIMMs in a quad (group of four) must be identical.
The HP 9000 rp3440 server may include up to 32 GB of memory in combinations of 256-MB, 512-MB, 1-GB,
2-GB, and 4-GB DIMMs. Again, DIMM sizes can be mixed within the server (except when 4 GB DIMMs are
used), but all four DIMMs in a quad (group of four) must be identical. If 4 GB DIMMs are used, only one
configuration (8 X 4 GB in the first eight sockets) is supported. Only complete quads (four DIMMs) can be
installed in the HP 9000 rp3440 server.
NOTE There is only one configuration of 4 GP DIMMs that is supported; two (2) quads of 4 GP
DIMMs. You cannot mix one quad of 4 GB DIMMs with any other quads.
NOTE The first eight sockets are the first eight sockets according to the memory loading rules and not
the first sequential sockets.
See “Common Procedures” on page 15 for memory installation procedures.
Limitations
Limitations on DIMM installation are:
• DIMMs must be installed in server load sequence (the first DIMM must be in the first slot, the second
DIMM must be in the second slot, and so on)
• A minimum of 512 MB (model A7136A) or 1 GB (model A7136B) of memory must be installed in an HP
9000 rp3410 server
• A maximum of six GB of memory can be installed in an HP 9000 rp3410 server
• A minimum of one GB of memory must be installed in an HP 9000 rp3440 server
• A maximum of 24 GB or 32 GB of memory can be installed in an HP 9000 rp3440 server (a 24 GB memory
configuration requires 2 GB DIMMs, a 32 GB memory configuration requires 4 GB DIMMs
• DIMM sizes within a quad must be the same (DIMMs of different sizes can be installed in a server but all
four DIMMs within a quad must be identical)
• If 4 GB DIMMS are used in an HP 9000 rp3440 server, only eight DIMMs (in the first eight sockets) can
be installed (This is the only supported configuration that uses 4 GB DIMMs)
• Use of 4 GB DIMMs requires that system firmware is upgraded