Dell OPTIPLEX 740 - Page 126

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