Hi @Phong Tran ,
Try power cycle of the MCU and see if the status becomes OK. Otherwise open a TAC case with
Event and Diagnostic logs from the MCU to check if it requires replacement.
-Hope this helps !
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In addition to what Rishabh [+5] has said, u can also connect console to MCU and look for Keyword FAN in the captured logs after u power off and ON the MCU.
you should get message as below
HEALTH_MONITOR : Info : fan speed test successful