DL380p Temperature Sensor 12

Hi.
I have a DL380p that did a shutdown 2 time yesterday, and when i go through syslog i se this.

hpHelper[35466]: WARNING: System Overheating (Temperature Sensor 12, Location System, Temperature 81C)
hpHelper[35466]: CRITICAL: Automatic Operating System Shutdown Initiated Due to Overheat Condition
sfcb-vmware_raw[36417]: IpmiIfcFruGetInv: Failed during send cc = 0xc9
sfcb-vmware_raw[36417]: IpmiIfcFruGetInv: Failed during send cc = 0xc9
sfcb-vmware_raw[36417]: IpmiIfcFruGetInv: Failed during send cc = 0xc9
sfcb-vmware_int[35260]: --- handler could not derive port number
init: starting pid 37847, tty '': '/usr/lib/vmware/vmksummary/log-bootstop.sh stop'
init: starting pid 37850, tty '': '/bin/shutdown.sh'
VMware[shutdown]: Stopping VMs
hpHelper[35466]: NOTICE: Automatic Operating System Shutdown Due to Overheat Aborted
hpHelper[35466]: NOTICE: System Overheating (Temperature Sensor 12, Location System, Temperature 81C) has been repaired

Now I'm trying to find out more exactly what sensor 12 is monitoring, can someone help?
I think i looked everywhere.

Regards
Bo.