Dell PowerEdge 6400 Manual page 5

support.dell.com
12. Install the new backplane board:
a. While holding the backplane board by its edges, position the board so that
the tabs on the computer chassis wall fit through the corresponding slots in
the backplane board.
b. Slide the backplane board toward the power supply paralleling board.
c. Secure the backplane board by tightening the captive thumbscrew.
d. Connect the 20-pin data cable from the system board to the connector
labeled "PLANAR" on the backplane board (see Figure 2 or Figure 3).
1 Cooling fan power cable connector (FAN)
2 Power connector (POWER)
3 System-board data cable connector (PLANAR)
4 Ultra3 SCSI cable connector (SCSIA)
SCSI Backplane Option 3