System Board (With Coin-Cell Battery) - Lenovo 30G1003QGE Hardware Maintenance Manual

The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.
For access, remove the following parts in order:
1. "Power adapter and power cord" on page 52.
2. "Chassis" on page 54.
3. "System Fan" on page 60
4. "Heat sink" on page 65
Removal steps
Notes:
• Your microprocessor and socket might look different from the one illustrated.
• Touch only the edges of the microprocessor. Do not touch the thermal grease on the top. Do not touch
the gold contacts on the bottom.
• Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept
as clean as possible.

System board (with coin-cell battery)

Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
Avoid contact with hot components inside the computer. During the operation, some components become
hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power,
and wait approximately 10 minutes for the components to cool.
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