HP nw9440 Maintenance And Service Manual page 176

Removal and Replacement Procedures
2. Remove the USB cable 1 and audio cable 2 from the clips in
the base enclosure.
3. Release the clip 3 that secures the USB/audio board to the
base enclosure.
4. Remove the USB/audio board 4 from the base enclosure.
Removing the USB/Audio Board
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