HP ProOne 400 G1 Maintenance & Service Manual page 82

7. Disconnect the optical drive cables (2) or the hard drive cables (4) from the system board.
NOTE:
cable straight out of the connector at a vertical (90°) angle.
8.
Remove the connector from the computer.
To install the hard drive or optical drive connector, reverse the removal procedures.
72 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis
To avoid damaging the connector when disconnecting the cable, be sure to pull the