Administrator's Guide

11. Unplug the cable from the power UID button assembly (1) and remove the screw from the
power UID button assembly (2). Then remove the faulty power UID button assembly (3).
Replacing the power UID button assembly
To replace the power UID button assembly:
1. Install the replacement power UID button assembly (1) and replace the screw in the power
UID button assembly (2). Then plug the cable into the power UID button assembly (3).
2. Push the hard drive drawer back in the messaging system enclosure.
3. Replace the hard drive fan module.
4. Replace the top back panel.
5. Place the messaging system into the rack and tighten the two retaining screws.
WARNING! The messaging system enclosure is heavy, even after removing the hard drives.
Always use at least two people to replace the messaging system in the rack.
6. Replace the server blades in their original bays.
7. Extend the hard drive drawer:
1. Press upward on the release button on the hard drive drawer (1).
2. Pull the drawer handle down 90 degrees (2).
Removing and replacing the power UID button assembly 89