IBM System x3750 M4 Type 8722 Installation And Service Manual page 125

7. If backplane filler panels are installed in the backplane bays in which you are
installing the backplane, remove the backplane filler panels.
8. Connect the two 10x2-pin power connectors on the combination
power/configuration cable to the backplane power connectors on the system
board. The power connector on the end of the black cable (which might be
labelled 1/3) connects to backplane connectors 3 on the system board. The
power connector on the end of the gray cable (which might be labelled 2/4)
connects to backplane connectors 4 on the system board. Connect the
configuration connector on the combination power/configuration cable to the
configuration connector on the backplane. Connect the other power connector
on the combination power/configuration cable to the power connector on the
backplane.
Note: You can connect the cables to the backplane before you install the
backplane onto the cage, or you can connect the cables after you install the
backplane, if that is easier for you.
Backplane power
connectors
Backplane power
configuration
cables
Configuration
connector
9. Insert the drive backplane tabs into the slots on the bottom of the backplane
cage and rotate the backplane assembly forward until the backplane locks into
place.
SAS power
connector
Chapter 2. Installing optional devices
109