The following figure illustrates the DIMM addresses on a processor module:
DIMM NAC names are based on the location of the DIMM slot on the processor module, as well as in which slot the processor module is installed. For example, the full NAC name for the DIMM installed in the front-left corner on a processor module installed at PM0 is:
/SYS/PM0/CM1/CMP/BOB0/CH0/D0