Use this information to remove the cover.
To remove the server top cover, complete the following steps:
- Read the safety information that begins in Safety and Installation guidelines.
- Turn off the server (see Turning off the server) and all attached peripheral devices. Disconnect all power cords; then, disconnect all external cables as necessary to replace the device. 
- If the server has been installed in a rack, press the two release latches on the front of the server and remove the server out of the rack enclosure.Two or more people are required to remove the system from a rack cabinet. 
- Loosen the two thumbscrews that secure the cover to the rear of the server.
- Press on the two blue grip points and slide the cover toward the rear; then, lift the cover off the server and set it aside. Figure 1. Cover removal