You can view the locations of the DIMMs on the Memory page in the Oracle ILOM web interface.
-> show /System/Memory/DIMMs -t location Target | Property | Value -------------------------+----------------+------------------------------ /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB00/CH0/DIMM (CPU Memory DIMM_0 | | IO Unit 0 Memory Branch 00 Memory Channel | | 0) /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB00/CH1/DIMM (CPU Memory DIMM_1 | | IO Unit 0 Memory Branch 00 Memory Channel | | 1) /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB01/CH0/DIMM (CPU Memory DIMM_2 | | IO Unit 0 Memory Branch 01 Memory Channel | | 0) /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB01/CH1/DIMM (CPU Memory DIMM_3 | | IO Unit 0 Memory Branch 01 Memory Channel | | 1) /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB10/CH0/DIMM (CPU Memory DIMM_4 | | IO Unit 0 Memory Branch 10 Memory Channel | | 0) /System/Memory/DIMMs/ | location | CMIOU0/CM/CMP/BOB10/CH1/DIMM (CPU Memory DIMM_5 | | IO Unit 0 Memory Branch 10 Memory Channel | | 1) ... ->