HP Z800 Maintenance And Service Manual page 143

8. Connect the chassis power cable to the slot load optical drive power cable.
Figure 5-57
9. Reconnect the optical disk drive data cable to the system board.
NOTE:
Figure 5-58
10. Reinstall all removed components and reconnect any cables that have been disconnected.
ENWW
Connecting chassis and slot load optical drive power cables
The optical disk drive power/data cable is still connected to the optical disk drive.
Connecting optical disk drive data cable to system board
Removing and installing components 131