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14. Reconnect all cables that were disconnected from the system board.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to “Completing the parts replacement” on page 48.
Replacing the system board battery
Attention:
Do not open your server or attempt any repair before reading and understanding the Safety Information and the
Warranty and Support Information on the ThinkServer Documentation DVD that came with your product, and
“Guidelines” on page 15
. To obtain a copy of the publications, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the system board battery.
Your server has a special type of memory that maintains the date, time, and conguration information for
built-in features. The system board battery keeps this information active when you turn off the server.
The system board battery normally requires no charging or maintenance throughout its life; however, no
battery lasts forever. If the system board battery fails, the date, time, and conguration information, including
passwords, are lost. An error message is displayed when you turn on the server.
Be sure to consider the following information when you replace the battery in the server:
• You must replace the battery with a lithium battery of the same type from the same manufacturer.
• To avoid possible danger, be sure to read and understand the following safety statement.
• After you replace the system board battery, you must reset passwords, system date and time, and
recongure the server.
Statement 2
CAUTION:
When replacing the lithium battery, use only the battery recommended by the manufacturer. If your
system has a module containing a lithium battery, replace it only with the same module type made by
the same manufacturer. The battery contains lithium and can explode if not properly used, handled,
or disposed of.
Do not:
• Throw or immerse into water
• Heat to more than 100°C (212°F)
• Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
To replace the system board battery, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See “Removing the server cover” on page 17.
3. Locate the system board battery. See Chapter 4 “Locating parts, controls, and connectors” on page 9.
Chapter 5. Installing, removing, or replacing hardware 47