HP Compaq dc7600 MT Hardware Reference Manual page 36

Hardware Upgrades
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2–20
10. To install a new expansion card, slide the bracket on the end of
the card down into the slot on the back of the chassis and press
the card down firmly into the socket on the system board.
Installing an Expansion Card
When you install an expansion card, make sure you press firmly on
the card so that the whole connector seats properly in the expansion
card socket.
11. Close the expansion card retention latch, making sure that it snaps
firmly into place.
12. Connect external cables to the installed card, if needed. Connect
internal cables to the system board, if needed. If the card requires
audio, connect the audio cable to the connector on the system
board labeled "Aux" (located towards the edge of the system
board in front of the PCI slots).
13. Replace the computer access panel.
14. If you normally lock the Smart Cover Lock, use Computer Setup
to relock the lock and enable the Smart Cover Sensor.
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