Lenovo 7D8T, Maintenance Manual

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About this task
To avoid potential danger, make sure to read 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.
Consider the following when replacing the battery.
• Remove the CMOS battery will cause system lockdown. To unlock the system, contact Lenovo Support.
• Lenovo has designed this product with user safety in mind. The lithium battery must be handled properly
to avoid potential danger. Make sure to follow instructions in this topic while replacing the battery.
• The CMOS battery must be replaced with another unit of the same type (CR2032).
• For high temperature operation environment, it is recommended to use CR2032HR instead.
• After replacement is completed, it is required to reconfigure the server and reset the system date and
time.
• Dispose of the battery as required by local ordinances or regulations.
Attention:
• To avoid potential damage,
do not
let the CMOS battery contact any metal surface.
• Make sure that all the server power cords are disconnected from power source before performing this
procedure.
Chapter 3
.
Hardware replacement procedures
61