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The following illustration shows the memory connector layout that is associated with
each microprocessor. For example, DIMM connectors 9, 10, 11, 12, 13, 14, 15, and
16 (DIMM connectors are shown underneath the boxes) are associated with
microprocessor 2 socket (CPU2), and DIMM connectors 1, 2, 3, 4, 5, 6, 7, and 8
are associated with microprocessor 1 socket (CPU1). The numbers within the boxes
indicate the installation sequence of the DIMM pairs. For example, the first DIMM
pair (indicated within the boxes by 1s) should be installed in DIMM connectors 3
and 6, which are associated with microprocessor 1 (CPU1).
Note: You can install DIMMs for microprocessor 2 as soon as you install
microprocessor 2; you do not have to wait until all of the DIMM connectors for
microprocessor 1 are filled.
The following table lists the installation sequence for installing DIMMs in
memory-mirroring mode.
Table 8. Memory-mirroring mode DIMM population sequence
DIMMs
First pair of DIMMs
Second pair of DIMMs
Third pair of DIMMs
Fourth pair of DIMMs
Fifth pair of DIMMs
Sixth pair of DIMMs
Note: DIMM connectors 7, 8, 15, and 16 are not used in memory-mirroring mode.
When you install or remove DIMMs, the server configuration information changes.
When you restart the server, the system displays a message that indicates that the
memory configuration has changed.
Number of installed
microprocessors
1
1
1
2
2
2
Chapter 2. Installing optional devices
DIMM connector
3, 6
2, 5
1, 4
14, 11
13, 10
12, 9
91
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