Lenovo 7Y54, Руководство по обслуживанию

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2. Install the server into the rack if necessary.
3. Reconnect power cords and all external cables.
CMOS battery replacement
Use the following information to remove and install the CMOS battery.
Remove the CMOS battery
Use this information to remove the CMOS battery.
To avoid possible danger, read and follow the following safety information.
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
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.
Before you remove the CMOS battery, complete the following steps:
1. Read “Safety” on page iii and “Installation Guidelines” on page 31 to ensure that you work safely.
2. If server is installed in a rack, remove the server from the rack.
3. Remove the top cover (see
“Remove the top cover” on page 86 ).
4. Locate the CMOS battery on the system board (see “System-board connectors” on page 16 ).
Chapter 3
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Hardware replacement procedures
37