Dell PowerEdge C6220 II Owner's Manual page 262

Item Cable
Hard-drive
backplane
power cable
Hard-drive
backplane
power cable
Power
distribution
board cable
I2C cables
Backplane
control cable
System fan
cable
12V power
cables
Ground
power cables
262 | Removing and Installing System Components
From
(Power Distribution
Boards)
Hard-drive backplane
power connector (J84)
Hard-drive backplane
power connector (J29)
Control connector (J31)
System board control
connectors (J5&J6)
Hard-drive backplane
control connector (J17)
System fan connector
(J9)
Power distribution board
1/2
Power distribution board
1/2
To
Backplane
Backplane
Power distribution
board 2
Middle planes
Backplane
System fans
Middle planes
Middle planes