840: Unsupported hardware change detected.

1. If possible, use the management GUI to run the recommended actions for the associated service error code.
2. If the hardware configuration is unexpectedly reduced, make sure the component has not been unseated. Hardware replacement might be necessary.

If the hardware detected does not match the expected configuration, replace the hardware component that is reported incorrectly.

Possible Cause-FRUs or other cause:

• One of the optional hardware components might require replacement