PE 2500SC ESM2 BP Primary Sensor Check Fail

[br0ck]

My server is up and running but I have a Blinking alert light right after POST

I installed the current:
BIOS
BP FW

I ran the Diag and got the following message

Embedded Server Mgmt - ESM2 BP Primary Sensor Check :Fail
Status: Fail Status Code: DOS DDG-D ESM2 140 036
Device: Embedded_Server_Mgmt Test: ESM2_BP_Primary_Sensor_Check
Release: 1070 Module(s): Esm2
Msg: Am important event was detected in the ESM log. Critical error on entry
117 of 120. SMB event was reported for BP SCSI Termination A External Voltage sensor with a value of


[that is the complete message]


any ideas >???

TIA