Sun Microsystems Sun Fire T1000 - Manual (Page 69)

Chapter 3 Removing and Replacing FRUs 57
▼ To Remove the Top Cover
Access to all customer replaceable units (CRUs) requires the removal of the top
cover:
Note – Never run the system with the top cover removed. The top cover must be in
place for proper air flow. The cover interlock switch immediately shuts the system
down when the cover is removed.
Caution – The system supplies 3.3 Vdc standby power to the circuit boards even
when the system is powered off if the AC power cord is plugged in.
1. Press the cover release button ( FIGURE 3-3 ).
2. While pressing the release button, grasp the rear of the cover and slide the cover
toward the rear of the server about one half inch.
3. Lift the cover off the chassis.
FIGURE 3-3 Location of Top Cover, Release Button
Removing and Replacing CRUs
This section provides procedures for replacing the following customer replaceable
parts CRUs) inside the server chassis:
■ “To Remove the Optional PCI Express Card” on page 58 and “To Add or Replace
the Optional PCI Express Card” on page 60
Cover release
button Top cover