Error message "cimserver: IpmiIfcFruBoard: checksum failed 0x43" logged continuously in vmkernel

Greetings,

Config: VMWare ESX Server, ver 3.5.0, Build 123630

Server: Sun Fire X4150 with 2 Fibre Channel HBA's multipathed to the same SAN.

    Fibre Channel: Emulex Corporation 4Gb Fibre Channel Host Adapter (rev 02)

    Fibre Channel: QLogic Corp QLA2432 (rev 03)

Problem:  Every 5 minutes the cimserver process reports a checksum failed message about "IpmiIfcFruBoard".  I cannot find any mention of what the IpmiIfcFruBoard is - a guess is that it is related to the Fibre Channel cards.

Questions:  What is the IpmiIfcFruBoard?  Is removing the cards alternatively the easiest method to work it out?

Running cimserver processes:

     /bin/sh /usr/bin/vmware-watchdog -s cimserver -u 60 -q 5 /var/pegasus/bin/cimserver daemon=false

     /var/pegasus/bin/cimserver daemon=false

/var/log/message:

Mar 19 06:17:00 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:21:57 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:26:55 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:31:53 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:36:50 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:41:47 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:46:45 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:51:42 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 06:56:39 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 07:01:37 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Mar 19 07:06:35 vmsrv02 cimserver: IpmiIfcFruBoard: checksum failed 0x43

Regards,

John