136 IBM eX5 Implementation GuideFigure 4-15 Memory mezzanine trayTable 4-9 NUMA-compliant DIMM installation: Two processors and the memory mezzanine installed4.8.3 MAX5 memoryThe MAX5 memory expansion unit has 32 DIMM sockets. It is designed to augment thememory that is installed in the attached x3690 X5 server.Number of DIMMsHemisphere Mode aa. 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 BufferDIMM 1DIMM 2DIMM 3DIMM 4DIMM 5DIMM 6DIMM 7DIMM 8DIMM 9DIMM 10DIMM 11DIMM 12DIMM 13DIMM 14DIMM 15DIMM 16DIMM 17DIMM 18DIMM 19DIMM 20DIMM 21DIMM 22DIMM 23DIMM 24DIMM 25DIMM 26DIMM 27DIMM 28DIMM 29DIMM 30DIMM 31DIMM 324 N x x x x8 Y x x x x x x x x12 N x x x x x x x x x x x x16 Y x x x x x x x x x x x x x x x x20 N x x x x x x x x x x x x x x x x x x x x24 Y x x x x x x x x x x x x x x x x x x x x x x x x28 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 x32 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 xTip: Table 4-9 lists only memory configurations that are considered best practice inobtaining optimal memory and processor performance. For a full list of supported memoryconfigurations, see the IBM System x3690 X5 Installation and User Guide or the IBMSystem x3690 X5 Problem Determination and Service Guide. You can obtain both of thesedocuments at the following website:http://www.ibm.com/support
