The articles address the issue observed in PTX10001-36MR devices with a log message and FPC-0 Poweron Failure alarm.

Alarms on the chassis :

root@> show chassis alarms

3 alarms currently active

Alarm time Class Description

2025-03-27 07:47:21 UTC Major FPC 0 Major Errors

2025-03-27 07:47:23 UTC Major FPC 0 Poweron Failure

2025-03-27 07:47:55 UTC Major Host 0 ESW Ethernet Link to PFEs Down

This issue has noticed when an abrupt power supply cut shuts the device and device boots up with FPC-0 alarm.

Would noticed below log message when chassis powered on and it indicated failure to power the FPC :

Mar 27 07:47:23 2025 Router hwdre: CHASSISD_FRU_NODE_ONLINE_FAILURE: The chassis process (hwd) could not online the FRU due to node online failure. fru: /Chassis[0]/Fpc[0], slot: 0

FPC would be fault state :

root@Router> show chassis fpc

Mar 27 09:19:58

                    Temp CPU Utilization (%)  CPU Utilization (%) Memory   Utilization (%)

Slot State           (C) Total Interrupt     1min  5min  15min DRAM (MB) Heap    Buffer

 0 Fault          ---None---

root@Router> show chassis fpc 0 detail

Mar 27 09:20:14

Slot 0 information:

 State                              Fault   

Due to abrupt power failure FPC hardware could have gone bad and will stuck in fault state.

Rebooting or power-draining the device would not help, replacement of the chassis and RMA is suggested.