HP Envy Maintenance And Service Manual page 68

Power connector cable (11)
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RTC battery cable (12)
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Left speaker and subwoofer cable (13)
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2. Remove the Phillips PM 2.5x5.5 screw that secures the security bracket to the computer (1), and
then remove the bracket from the computer (2).
3. Remove the 3 Phillips PM2.0×3.5 screws (1) that secure the system board to the computer.
60 Chapter 4 Removal and replacement procedures