Dell OptiPlex 740 User Manual page 126

18 GND
19 GND
20 NC
21 +5 VDC
22 +5 VDC
23 +5 VDC
24 GND
DC Power Connector P2
Pin Number Signal Name
1 GND
2 GND
3 +12 VADC
4 +12 VADC
DC Power Connectors P3, P5, P8, and P9
Pin Number Signal name
1 +3.3 VDC
2 GND
3 +5 VDC
4 GND
5 +12 VBDC
DC Power Connector P7
Pin Number Signal Name
1 +5 VDC
2 GND
3 GND
4 +12 VADC
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Black
Black
NC
Red
Red
Red
Black
18-AWG Wire
Black
Black
Yellow
Yellow
18-AWG Wire
Orange
Black
Red
Black
White
22-AWG Wire
Red
Black
Black
Yellow