T4-2 fault error message

 Hi 

i have the following error in T4-2. I'm not too sure where the fault lies in. Is this a motherboard issue or a pci device issue?

need advice. thanks

/SP/faultmgmt/0

    Targets:

        faults

    Properties:

        fru = /SYS/MB

 /SP/faultmgmt/0/faults

    Targets:

        0 (fault.io.pci.device-invreq)

    Properties:

 /SP/faultmgmt/0/faults/0

    Targets:

    Properties:

        class = fault.io.pci.device-invreq

        sunw-msg-id = PCIEX-8000-5Y

        component = /HOST

        uuid = 3bd937d1-e85b-47e0-e895-b18d253820b0

        timestamp = 2013-11-06/10:34:12

        chassis_serial_number = AK00136553

        product_serial_number = AK00136553

        fru_serial_number = 465769T+1329TF0NNU

        fru_part_number = 7049060

        mod-version = 1.16

        mod-name = eft

        fault_diagnosis = /HOST