Lenovo ThinkServer RD440 User Manual And Hardware Maintenance Manual page 209

DANGER
Danger of explosion if battery is incorrectly replaced.
When replacing the lithium coin cell battery, use only the same or an equivalent type that is
recommended by the 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.
The following statement applies to users in the state of California, U.S.A.
California Perchlorate Information:
Products containing manganese dioxide lithium coin cell batteries may contain perchlorate.
Perchlorate Material - special handling may apply, See
www.dtsc.ca.gov/hazardouswaste/perchlorate
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
To replace the coin-cell battery, do the following:
Note: After you replace the coin-cell battery, you must reset passwords, reset system date and time, and
reconfigure the server.
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. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server.
3. Remove the server cover. See "Removing the server cover" on page 89.
4. Locate the coin-cell battery. See "System board components" on page 53.
Note: If there is any PCI Express card installed on the riser card assembly 1, it might block your access
to the coin-cell battery. In this case, you need to remove the cooling shroud and then carefully lift the
riser card assembly 1 up so that you can access the coin-cell battery. You do not need to disconnect
any cables from the riser card assembly 1 or completely remove the riser card assembly 1.
.
Chapter 6 Installing, removing, or replacing hardware
197