Dell Inspiron 530sa Owner's Manual page 122

DC Power Connector P4
Pin Number Signal Name
1 +5 VDC
2 GND
3 GND
4 +12 VADC
DC Power Connector P7
6 5 4
3 2 1
Pin Number Signal Name
1
2 COM
3 COM
4 +3.3 VDC
5 +5 VDC
6 +12 VDC
122
Removing and Installing Parts
22-AWG Wire
Red
Black
Black
Yellow
18-AWG Wire
N/C
Black
Black
Orange
Red
Yellow