Dell XPS 720 Owner's Manual page 151

Pin Number Signal name
4 +3.3 VDC
5 +5 VDC
6 +12 VC DC
DC Power Connector P15 (Graphics Card – 1-KW PSU Only)
Pin Number Signal Name
1 +12 VB DC
2 +12 VB DC
3 +12 VB DC
4 COM
5 COM
6 COM
1-KW Power Supply
18-AWG Wire Color
Orange
Red
Blue/White
4 5 6
1 2 3
18-AWG Wire Color
White
White
White
Black
Black
Black
750-KW Power Supply
Signal name 18-AWG Wire Color
+3.3 VDC Orange
+5 VDC Red
+12 VD DC Yellow/White
Removing and Installing Parts
151