DIMM FRU names are based on three terms:
The DIMM slot number (D0000 to D1113)
The CMP module number (CMP0 to CMP1)
The CMU number (CMU0 to CMU15)
For example, the DIMM slot number outlined in red below is D0100 and belongs to processor module CMP1. If the CMU is in slot 15, the FRU name for the DIMM slot is:
CMP0 also has a DIMM slot D0100 (outlined in blue). The FRU name for this DIMM is almost the same as in the example above:
Note that the CMP number differs from the previous example.