IBM 5000 - Manual (Page 85)

Adding Security
3. If you have completed installing the U-bolt and do not want to install any other
internal options, replace the server cover and reconnect all external cables and
power cords (see “Completing the Installation” on page 76 if you need
additional information).
4. Thread the cable through the U-bolt and around an object that is not a part of
or permanently secured to the building structure or foundation, and from which
it cannot be removed; then, fasten the cable ends together with a lock.
The following illustration shows an example of how this might work.
Chapter 4. Installing Options 75