HP Rp5700 - Point of Sale System Hardware Reference Manual page 56

10. Install the new Powered Serial Port Expansion Card in the upper socket of the riser card.
a. Align the bracket on the card with the open slot on the rear of the chassis and press the card
straight into the expansion socket.
NOTE:
connector seats properly in the expansion card slot.
b. Connect the system board cables to the system board (1) and the expansion card (2). Connect
the power cable to the expansion card (3).
Figure C-8
Expansion Card
c. Return the power supply to the down position until it locks.
11. Replace the computer cover.
12. If the computer was on a stand, replace the stand.
13. Reconnect the power cord and any external devices, then turn on the computer.
14. Lock any security devices that were disengaged when the computer cover was removed.
15. If the serial ports are configured in powered mode, connect the powered Point of Sale device.
50 Appendix C Powered Serial Ports
When installing an expansion card, press firmly on the card so that the whole
Connecting System Board and Power Cables to the Powered Serial Port
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