HP Compaq nw8440, nc8430, nx8420 Notebook PCs - Maintenance and Service Guide

Removal and Replacement Procedures
Maintenance and Service Guide 5–63
8. If it is necessary to replace the modem cable, remove the
modem connector and cable 1 from the clips 2 in the system
board frame.
Removing the Modem Cable
Reverse the above procedures to install the system board frame.