Asus P1-AH1 - Manual (Page 40)

2-24 Chapter 2: Basic installation
4. Lift the foot stand, then set it
aside.
2.11.2 Removing the foot stand
To remove the foot stand:
1. Lay the system upside down on
a flat and stable surface.
2. Locate the foot stand lock.
3. Use your thumb to push the lock
toward the rear panel until the
foot stand tabs are released
from the chassis holes.