Asus P3-P5G31 - Manual (Page 42)

2-26 Chapter 2: Basic installation
3. Slide the cover toward the front panel
until it is in place.
4. Replace the cover screws.
2.10.2 Replacing the system cover
To replace the metal chassis support:
2. Match and insert the hooks of the
cover to the elongated holes on
the side of the chassis. All eight
hooks (four hooks on both sides)
of the cover must properly fit the
designated holes.
1. Reinstall the metal chassis
support and the expansion card
lock.