Packard Bell EasyNote ST Disassembly Manual page 17

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2. Carefully disconnect the power cable from the header on the main board.
Fig. 26 Location of cooler cable and screws.
3. Remove the two screws securing the cooler (see Fig. 26 on page 16).
4. Remove the DC jack cable from the header on the main board.
Fig. 27 Location of main board screws and DC jack header.
Packard Bell EasyNote ST Disassembly Manual