Lenovo 3000 C305 All-In-One - Manual (Page 41)

Chapter 7. Replacing hardware
39
5. Remove the power board.
6. Align the screw holes on the power board to the mounting holes on
the computer cover.
7. Screw back the two screws on the new power board.
8. Connect the power board cable to the power board.
9. Install the computer cover. Refer to “Completing the installation” .