An attempt to write to a device on the PDHC's SM bus has failed. The devices on the SM bus are the CPU modules' FRU EEPROMs, the CPU modules' Processor Information ROMs, and the CPU modules' thermal sensors. The Data field information contains information that can identify the exact device that has failed. Refer to the Cell ERS for a mapping of SM Bus device addresses to devices. Data Bytes[0-1]: Reserved Data Bytes[2-3]: SM bus Device Address Data Bytes[4-5]: Starting Word Address Data Bytes[6-7]: Size of attempted access (in bytes).