Dell Optiflex 740 User Manual page 66

*Use 22-AWG wire instead of 18-AWG wire.
DC Power Connector P2
Pin Number Signal Name
1 COM
2 COM
3 +12 VDC
4 +12 VDC
DC Power Connector P3
Pin Number Signal name
1 +12VDC
2 COM
3 COM
4 +5 VDC
DC Power Connector P4
Pin Number Signal Name
1 +5 VCD
2 COM
3 COM
4 +12 VDC
DC Power Connector P5 and P6
Pin Number Signal name
1 +3.3 VDC
2 COM
3 +5 VDC
4 COM
5 +12 VDC
18-AWG Wire
Black
Black
Yellow
Yellow
18-AWG Wire
Yellow
Black
Black
Red
22-AWG Wire
Red
Black
Black
Yellow
18-AWG Wire
Orange
Black
Red
Black
Yellow