Compaq LTE Elite Maintenance And Service Manual page 254

NOTE: The vertical circuit board and the drive signal cables are labeled to
help match the correct connectors. Refer to Section 9.15 for more
information on drive cables.
4. Lift the expansion board cage vertically to remove it from the expansion
base (Figure 9-11).
NOTE: The expansion board cage is "keyed" to ride inside grooves that are
in the three cage support posts.
When removing the expansion board cage, the edge connectors on the vertical
circuit board disconnect from the system board.