Replace the model 285 or 520 service processor assembly

Use this procedure to replace the service processor assembly.

1. Rotate the service processor assembly handles to the open position A.
   Figure 1. Stand-alone model 285 or 520

   
   Figure 2. Rack-mounted model 285 or 520

   
2. Align the service processor assembly with the slot in the system frame.
3. While holding the service processor assembly by the handles, carefully push the assembly into place B.
   Note: Ensure that the two pins on the flange of the service processor assembly align with the corresponding alignment pin holes in the back plate while you carefully push the service processor assembly into place.
4. Rotate the service processor assembly handles until they lock into place C.
5. Reconnect all cables to the service processor assembly.
6. Replace the service access cover. For instructions, see Install the service access cover on the model 285, 51x, 52x, 55x, 710, or OpenPower 720.
7. If you have a rack-mounted model 285 or 520, Place the rack-mounted system or expansion unit in the operating position.
8. If you have a rack-mounted model 285 or 520, replace the front cover. For instructions, see Install the front cover on the rack-mounted model 285, 52x, 55x, or OpenPower 720, or the 0595 expansion unit.
9. Restore the service processor settings.
   Important: Do not start the system at this time. The system will be restarted automatically while restoring the service processor settings.