Dell OptiPlex 320 User Guide - Page 104
DC Power Connector P2, DC Power Connectors P3 and P5, DC Power Connector P4, DC Power Connector P7
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18 GND Black 19 GND Black 20 NC N/C 21 +5 VDC Red 22 +5 VDC Red 23 +5 VDC Red 24 GND Black *Use 22-AWG wire instead of 18-AWG wire. DC Power Connector P2 Pin Number Signal Name 18-AWG Wire 1 GND Black 2 GND Black 3 +12 VDC Yellow 4 +12 VDC Yellow DC Power Connectors P3 and P5 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 GND Black 3 +5 VDC Red 4 GND Black 5 +12 VDC White DC Power Connector P4 Pin Number Signal name 18-AWG Wire 1 N/C N/C 2 GND Black 3 GND Black 4 + 3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC White DC Power Connector P7
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DC Power Connector P2
DC Power Connectors P3 and P5
DC Power Connector P4
DC Power Connector P7
18
GND
Black
19
GND
Black
20
NC
N/C
21
+5 VDC
Red
22
+5 VDC
Red
23
+5 VDC
Red
24
GND
Black
*Use 22-AWG wire instead of 18-AWG wire.
Pin Number
Signal Name
18-AWG Wire
1
GND
Black
2
GND
Black
3
+12 VDC
Yellow
4
+12 VDC
Yellow
Pin Number
Signal name
18-AWG Wire
1
+3.3 VDC
Orange
2
GND
Black
3
+5 VDC
Red
4
GND
Black
5
+12 VDC
White
Pin Number
Signal name
18-AWG Wire
1
N/C
N/C
2
GND
Black
3
GND
Black
4
+ 3.3 VDC
Orange
5
+5 VDC
Red
6
+12 VDC
White