HP TouchSmart dx9000 Reference Manual page 23

3. Remove the I/O cable guide. To remove it, first squeeze the tabs at its sides and then pull the guide
off its mounting post.
4. Remove the memory door and the stand.
5. Remove the optical disc drive cover panel.
6. Remove the nine screws that secure the back cover to the computer, as follows:
a. 2 screws are located near the optical disc drive
Back cover 17