HP 98568A Installation Instruction page 33

HP 98568A Backplane Expander
15. Slide the top cover into place on the computer. Press in on the front edge
of the cover with the heels of your hands while pressing in on the rear
corners with your elbows.
Figure 2-7.
Installing the Cover on the Computer
16. Make sure that the bottom, rear corners of the top are seated in their
retaining clips. If you can flex the rear corners of the cover away from the
computer, they are not seated properly.
17. Install the two cables onto the bottom of the expander backplane. Be
careful not to bend any of the pins in the connector. Press in until the
locking tabs lock across the back of the cable connector.
18. Install the top cover removed from the computer onto the expander using
the method in step 15. Make sure that the bottom, rear corners of the top
are seated in their retaining clips.
19. Re-install the power supply access doors on the computer and expander
and tighten the captive screws. Make sure that the "feet" on the bottom of
the door are installed in their retaining grooves.
Adding Expanders 2-9