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• Read "Installation guidelines" on page 57 to ensure that you work safely.
• Power off the server and disconnect all power cords for this task.
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-
sensitive components in their static-protective packages until installation, and handling these devices with
an electrostatic-discharge wrist strap or other grounding system.
Consider the following when replacing the CMOS battery in the server:
• When replacing the CMOS battery, you must replace it with another CMOS battery of the same type from
the same manufacturer.
• After replacing the CMOS battery, make sure to reconfigure the server and reset system date and time.
• Lenovo has designed this product with your safety in mind. The lithium battery must be handled correctly
to avoid possible danger. If you install the CMOS battery, you must adhere to the following instructions.
• If you replace the original lithium battery with a heavy-metal battery or a battery with heavy-metal
components, be aware of the following environmental consideration. Batteries and accumulators that
contain heavy metals must not be disposed of with normal domestic waste. They will be taken back free
of charge by the manufacturer, distributor, or representative, to be recycled or disposed of in a proper
manner.
Watch the procedure. A video of the installation and removal process is available:
• YouTube:
https://youtube.com/playlist?list=PLYV5R7hVcs-DoEcxrm2zKNpaKOdZ3f8Qc
• Youku:
https://list.youku.com/albumlist/show/id_59636516
Procedure
Step 1.
Install the CMOS battery.
Figure 48. Installing the CMOS battery
a.
Place the CMOS battery on top of the socket with the positive (+) symbol facing up.
b.
Push the battery into the socket until it clicks in place.
After you finish
1. Reinstall the air baffle. See "Install the air baffle" on page 74.
2. Reinstall all the flash power modules. See "Install a flash power module" on page 100.
3. Reinstall the server cover. See "Install the server cover" on page 190.
4. Complete the parts replacement. See "Complete the parts replacement" on page 206.
5. Reset date, time, and all the passwords.
Drive replacement
Use the following information to remove and install drives.
.
Chapter 4
Hardware replacement procedures
79
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