• Keep NVRAMs away from any objects that can cause static electricity. Static electricity can damage NVRAM data.

  1. Remove the controller box. (Controller Box (P 800/801))
  2. Remove the slot cover [A].

  3. Remove the controller box cover [A].

    • The screw [B] is a small screw. Be careful not to use the wrong screw when installing the controller box cover.

  4. Remove the controller board [A] with the BiCU [B].

    • Be careful not to damage any components of the controller board [A] and the BiCU [B].

  5. Remove the controller board [A] from the BiCU [B].
  6. Remove the two guide rails [A] from the controller board [B].
  7. Remove the NVRAM [A] from the old controller board and install them on the new controller board.

  • Make sure the NVRAM [A] is installed at the correct mounting location and orientation. Install the NVRAM so that the indentation on the NVRAM corresponds with the mark [B] on the controller board.
  • Incorrect installation of the NVRAM will damage both the controller board and NVRAM.