Installing A Max5 Memory Module - IBM System x3690 X5 Installation And User Manual

If you have other devices to install or remove, do so now. Otherwise, go to
"Completing the MAX5 installation" on page 127.

Installing a MAX5 memory module

The following notes describe the types of DIMMs that the MAX5 memory
expansion module supports and other information that you must consider when
you install DIMMs.
v Confirm that the MAX5 supports the DIMM that you are installing, see
v The MAX5 supports a maximum of 32 DIMMs (single-rank, dual-rank, or
v The DIMM options that are available for the MAX5 are 2 GB, 4 GB, 8 GB, and 16
v The MAX5 supports a minimum of 4 GB and a maximum of 512 GB of system
v The MAX5 supports 1.35-volt (low-voltage) and 1.5-volt DIMMs. In addition,
v Some MAX5 models come with the Intel 7500 scalable memory buffer or the
v Double-device data correction support is only available when 16 GB x4 DRAM
v The MAX5 supports memory sparing through the host server. Memory sparing
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System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.
quad-rank).
Note: To determine the type of a DIMM, see the label on the DIMM. The
information on the label is in the format xxxxx nRxxx PC3-xxxxx-xx-xx-xxx. The
numeral in the sixth numerical position indicates whether the DIMM is
single-rank (n=1) or dual-rank (n=2).
GB (when available).
memory.
support is dependent on the host server machine type that the MAX5 is
connected to as noted below:
– When connecting the MAX5 to IBM System x3690 X5 Machine Types 7148
and 7149:
- Install only 1.5-volt DIMMs in the MAX5.
– When connecting the MAX5 to IBM System x3690 X5 Machine Types 7147
and 7192:
- The MAX5 supports low-voltage (1.35-volt) DIMMs at capacities of 4 GB, 8
GB, and 16 GB only.
- When you mix 1.35-volt and 1.5-volt DIMMs in the MAX5, the MAX5 will
operate at the 1.5-volt rate.
- You can enable all DIMMs (1.35-volt and 1.5-volt) to operate at 1.5-volt in
the host server Setup utility.
Intel 7510 scalable memory buffer. See the parts listing table under "Replaceable
MAX5 components" in the Problem Determination and Service Guide for
information about the Intel memory buffer that is supported on the MAX5
system board tray.
technology DIMMs are installed in the MAX5 and the MAX5 is connected to a
host server.
reserves memory capacity for failover in the event of a DIMM failure, and the
reserved capacity is subtracted from the total available memory. Memory sparing
provides less redundancy than memory mirroring does. If a predetermined
threshold of correctable errors is reached, the contents of the failing DIMM are
copied to the spare memory, and the failing DIMM or rank is disabled. To
enable memory sparing through the Setup utility, select System Settings >
Memory.