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Asset ID: 1-72-1003659.1
Update Date:2017-11-30
Keywords:

Solution Type  Problem Resolution Sure

Solution  1003659.1 :   How to address "VOLTAGE_SENSOR @ MB.BAT.V_BAT has exceeded low warning threshold." messages on the Sun Fire[TM] V210 and Sun Fire V240 servers  


Related Items
  • Sun Netra 240 (DC) Server
  •  
  • Sun Fire V240 Server
  •  
  • Sun Fire V210 Server
  •  
Related Categories
  • PLA-Support>Sun Systems>SPARC>Workgroup Servers>SN-SPARC: SF-V2x0
  •  
  • _Old GCS Categories>Sun Microsystems>Servers>Entry-Level Servers
  •  

PreviouslyPublishedAs
205170


Applies to:

Sun Netra 240 (DC) Server - Version All Versions to All Versions [Release All Releases]
Sun Fire V210 Server - Version All Versions and later
Sun Fire V240 Server - Version All Versions and later
All Platforms

Symptoms

If the 3v battery located on the motherboard of the Sun Fire[TM] V210 or Sun Fire[TM] V240 fails (or is removed for any reason) then ALOM will send out an alert informing the user of this fact.

Cause

For example:

SC Alert: VOLTAGE_SENSOR @ MB.BAT.V_BAT has exceeded low warning threshold.

You can also check the battery status by running the prtdiag -v command from Solaris[TM].
Here is an example of the voltage section of prtdiag -v output with a failed battery ==>

--------------------------------
Voltage sensors:
-------------------------------
Location Sensor Status
-------------------------------
MB/P0 V_CORE okay
MB/P1 V_CORE okay
MB V_VTT okay
MB V_GBE_+2V5 okay
MB V_GBE_CORE okay
MB V_VCCTM okay
MB V_+2V5 okay
MB V_+1V5 okay
MB/BAT V_BAT warning (0.53V)
PS0 P_PWR okay
MB FF_POK okay
PS0 FF_UV okay
PS0 FF_OV okay
--------------------------------------------------

Solution


The battery that resides on the motherboard for these servers is now a FRU (Field Replaceable Unit) part and may be ordered and replaced independently of the motherboard. To minimize downtime and needless parts replacement when this battery fails, it is recommended that the battery FRU be ordered and replaced.


Product
Sun Fire V210 Server
Sun Fire V240 Server



To locate the battery please see the Sun System Handbook's motherboard diagram. The battery is labeled BR2032 on the board:

  https://mosemp.us.oracle.com/handbook_internal/Devices/System_Board/SYSBD_SunFireV2x0_CPU.html

V210, V240, battery, voltage, replacement
Previously Published As
81366

Change History
Date: 2005-05-10
User Name: 25440
Action: Approved
Comment: Publishing.
Version: 6
Date: 2005-05-10
User Name: 25440
Action: Accept
Comment:
Version: 0

References

<NOTE:1508651.1> - 'VOLTAGE_SENSOR @ MB.BAT.V_BAT has exceeded low warning threshold' in Sun Fire V440 & Sun Netra 440 Servers

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