Silicon Graphics 1600SW Guide D'utilisation page 18

EN-8 Chapter 1
You may find this task easier to accomplish if a second person helps
you. The steps below describe how to remove the monitor from its
base.
1. Locate the 3 mm hex wrench included with your flat panel
monitor.
2. Raise the monitor to its highest position. This makes it easier to
remove the screws. See Figure 1-3.
3. Tilt the monitor forward for easier access to the two screws.
Note: Once you've removed the two screws, make sure that
you or someone else is holding the monitor.
Figure 1-4 Removing the Monitor From Its Base
4. Holding the monitor as pictured in Figure 1-4, use the 3 mm hex
wrench to loosen and remove the two hex screws that secure the
monitor to its base. Save the screws in case you need to replace
the monitor on its base.