136 IBM eX5 Implementation Guide
Figure 4-15 Memory mezzanine tray
Table 4-9 NUMA-compliant DIMM installation: Two processors and the memory mezzanine installed
4.8.3 MAX5 memory
The MAX5 memory expansion unit has 32 DIMM sockets. It is designed to augment the
memory that is installed in the attached x3690 X5 server.
Number of DIMMs
Hemisphere Mode
a
a. For more information about Hemisphere Mode and its importance, see 2.3.5, “Hemisphere Mode” on page 26.
Processor 1 (planar DIMMs) Processor 2 (mezzanine DIMMs)
Buffer Buffer Buffer Buffer Buffer Buffer Buffer Buffer
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 7
DIMM 8
DIMM 9
DIMM 10
DIMM 11
DIMM 12
DIMM 13
DIMM 14
DIMM 15
DIMM 16
DIMM 17
DIMM 18
DIMM 19
DIMM 20
DIMM 21
DIMM 22
DIMM 23
DIMM 24
DIMM 25
DIMM 26
DIMM 27
DIMM 28
DIMM 29
DIMM 30
DIMM 31
DIMM 32
4Nx x x x
8
Y x x x x x x x x
12 N
x x x x x x x x x x x x
16
Y x x x x x x x x x x x x x x x x
20 N
x x x x x x x x x x x x x x x x x x x x
24
Y x x x x x x x x x x x x x x x x x x x x x x x x
28 N
x x x x x x x x x x x x x x x x x x x x x x x x x x x x
32
Y x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
Tip: Table 4-9 lists only memory configurations that are considered best practice in
obtaining optimal memory and processor performance. For a full list of supported memory
configurations, see the IBM System x3690 X5 Installation and User Guide or the IBM
System x3690 X5 Problem Determination and Service Guide. You can obtain both of these
documents at the following website:
http://www.ibm.com/support
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