IBM System x3650 M5, Инструкция по установке и обслуживанию, Страница: 186 / 1010

DIMM installation sequence:
Depending on the server model, the server may come with a minimum of one 4
GB DIMM installed in slot 1. When you install additional DIMMs, install them in
the order shown in the following table to optimize system performance.
In general, all four channels on the memory interface for each microprocessor can
be populated in any order and have no matching requirements.
Table 11. Normal mode DIMM installation sequence
Number of installed
microprocessor
DIMM connector population sequence
One microprocessor
installed 1, 4, 9, 12, 2, 5, 8, 11, 3, 6, 7, 10
Two microprocessors
installed 1, 13, 4, 16, 9, 21, 12, 24, 2, 14, 5, 17, 8, 20, 11, 23, 3, 15, 6, 18,
7, 19, 10, 22
For optimal performance:
Make sure all four memory channels of each microprocessor are populated. Each
memory channels should be populated with the same type and amount of memory
per channel. Each microprocessor socket should be populated with the same type
and amount of memory per socket. 1DPC (one DIMM per channel) or 2DPC (two
DIMM per channel) memory configuration are recommended. Unless there is a
need for memory capacity over memory frequency, 3DPC (three DIMMs per
channel) configuration is not recommended since 3DPC configuration forces the
memory subsystem to run at a lower frequency (1600 MHz).
Please refer to the Understanding and Optimizing Memory Performance for Intel
Xeon Processor E5-2600 v3 Series in IBM Flex System, System x, and BladeCenter
Platforms white paper for the detail.
Replacing a memory module:
Use this information to replace a memory module.
Procedure
1. Read the safety information that begins on “Safety” on page vii and
“Installation guidelines” on page 283.
2.
Turn off the server and peripheral devices and disconnect the power cords
and all external cables, if necessary.
3. Remove the top cover (see “Removing the top cover” on page 146).
4. Remove the air baffle (see “Removing the air baffle” on page 148).
5. Carefully open the retaining clips on each end of the DIMM connector and
remove the DIMM.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
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System x3650 M5 Type 5462: Installation and Service Guide