HP 6 - Manual (Page 32)

2 How to Install Accessories In Your PC
Removing and Replacing the Cover
20 English
Replacing the Cover after Installing Accessories
1 Check that you have installed all your accessories.
2 Make sure that all internal cables are properly connected and safely
routed so they will not be entangled when you replace the cover.
3 Ensure that the cover lock is unlocked.
4 Lower the cover onto the computer (aligning the front of the cover
with the inner front edge of the computer frame), and firmly slide it
forwards into position.
5 If required, lock the cover using the key.
6 Replace the front panel by first inserting the two lower hinges then
pivoting it upwards into place. The two tabs will click into place.
7 Close the central latch on top of the front panel.
8 Reconnect all cables and power cords.