Lenovo THINKSERVER 3821 - Manual (Page 213)

12. Install and lock the left-side cover (see “Installing the left-side cover” on page
158).
13. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
Removing the operator information panel assembly
1 Release latch
2 Control panel assembly
To remove the operator information panel assembly, complete the following steps:
1. Read the safety information that begins on page 5.
2. Turn off the server and peripheral devices, and disconnect the power cords
and all external cables.
3. Unlock and remove the left-side cover (see “Removing the left-side cover” on
page 157).
4. Open the bezel (see “Opening the bezel” on page 150).
5. Remove the power supply or power supplies from the power-supply cage (see
“Removing a hot-swap power supply” on page 174).
6. Rotate the power-supply cage to its open position (see “Opening the
power-supply cage” on page 158).
7. Remove the air baffle (see “Removing the air baffle” on page 169).
8. Remove the fan-cage assembly (see “Removing the fan-cage assembly” on
page 171).
9. Disconnect the operator information panel assembly cable from the system
board (see “System-board internal connectors” on page 131).
10. Locate the operator information panel assembly release latch just above the
DVD drive.
Chapter 7. Installing optional devices and replacing customer replaceable units 205