HP ProBook 6455b, 6555b, 6450b and 6550b Notebook PCs Maintenance and Service Guide

5. If it is necessary to replace the optical drive connector board, slide the board off of the system
board. The optical drive connector board is available using spare part number 613314-001. The
optical drive connector board is used only with computer models equipped with a 15.6-in display
assembly.
Reverse the procedure to install the system board.
138 Chapter 4 Removal and replacement procedures