Fan speed can't be modified cause of temperature alarm

Publication Date:  2013-12-12 Views:  335 Downloads:  0
Issue Description
S9303(V100R001C02B118)'s  Fan run at  100% speed all the time,  and there are error notice occurred when try to regulate the speed by manually.
Alarm Information
[S9303]set fan-speed slot 6 percent 30                                         
ERROR: Can not Set Fan Speed Because of Alarm, error code: 0x70d9!
[S9303-hidecmd]dis alarm all                                                   
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Level          Date        Time                Info                            
Warning      2009-04-10  14:04:31    PWR board[7] is absent.
Warning      2009-04-10  14:04:14    The "2.5V" voltage sensor of MCU  board[5](entity) exceed lower minor limit.
Warning      2009-04-10  14:04:14    The "1.8V" voltage sensor of MCU board[5](entity) exceed lower minor limit. 
Warning      2009-04-10  14:04:14    The "1.25V_A" voltage sensor of MCU board[5](entity) exceed upper minor limit.
Warning      2009-04-10  14:04:14    The "1.2V" voltage sensor of MCU board[5](entity) exceed upper minor limit.       
Warning      2009-04-10  14:04:14    The "3.3V" voltage sensor of MCU board[5 ](entity) exceed upper minor limit. 
Warning      2009-04-10  14:04:14    The "CLK_DET_125M" sensor12 of MCU board5] detect clock signal fault.            
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Handling Process
1、Use "disp cdev slot 5" of hidden view  we found  that  the board type was "BoardExtType 3", which is correct.
2、Use "dis dsms variable slot 5' we found the info like this "BoardExtType 7" which should be modified.
3、Modify the board type like this,set boardid <slot-id> <type-id>
[S9303-hidecmd]set boardid 5 3
2、Reset CBUS with commands
[S9303-hidecmd]reset cbus slot  5 cold
3、Renew  the software and SDR file of CBUS.
<S9303>upgrade slavempu jtag startup canbus_app
<S9303>upgrade slavempu jtag startup canbus_sdr
5、Then temperature alarm disappeared, Fan speed can be automatically regulated to 27%.
Root Cause
1、Backup SPU (Slot 5)'s board type is incorrect  and  lead to temperature alarm.
2、The fan run with 100% speed because of the  temperature alarm  and can't regulate it manually.
3、Modify the board type and reset CBUS, The problem can be solved.
Suggestions
If there is a alarm refer to temperature he FAN will run with 100% speed.  But sometimes  this alarm will be caused of other reasons, so we would better deal with it  immediately  to make the fun speed become normal.

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