HP Compaq NX9100 Reference Manual page 14

3. Gently pull the expansion cable from its docked location and
slide it to either side of the Expansion Base, depending on
where the expansion connector on your notebook is located.
The location of the expansion connector on your notebook
may vary by notebook series and model.
Sliding the cable to either side of the Expansion Base
Reference Guide
It is important to position the cable correctly, so that the cable
can move freely. A cable skirt and guide assist in positioning
the cable.
Connecting and Removing the Notebook
2–5