Lenovo x3300 M4 7382 Installation And Service Manual page 205

Step 7. Turn on the peripheral devices and the server.
Removing the left-side cover
Use this information to remove the left-side cover.
Important: Before you install optional hardware, make sure that the server is working correctly. Start the
server, and make sure that the operating system starts, if an operating system is installed, or that a 19990305
error code is displayed, indicating that an operating system was not found but the server is otherwise
working correctly. If the server is not working correctly, see Chapter 4 "Troubleshooting" on page 117 for
diagnostic information.
Attention: The server automatically powers off when the left-side cover is removed.
To remove the left-side cover, complete the following steps:
1. Read the safety information that begins in "Safety" on page v and "Installation guidelines" on page 169.
2. Turn off the server (see "Turning off the server" on page 24) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables as necessary to replace the device.
3. Carefully turn the server on its side so that it is lying flat, with the left-side cover facing up.
4. Unlock the left-side cover, using the key that comes with the server.
5. Pull the rear edge of the left-side cover backward to remove the left-side cover away from the server.
.
Chapter 6 Removing and replacing components
193