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4. Turn the screw in the CPU into the unlock position to release the CPU.
Fig. 32 Location of screw securing CPU.
5. Carefully take out the CPU from the socket.
CMOS Battery
To remove the CMOS battery, first remove the main board (see Main Board on page 15), and then perform the following steps:
1. Release the CMOS battery and take it from the socket on the main board.
Fig. 33 Removing CMOS battery.
Packard Bell EasyNote ST Disassembly Manual