IBM eX5 Implementation Guide

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