14. Connect your computer and devices to electrical outlets, and turn them on.
DC Power Connectors
Small Desktop Power Supply DC Connector Pin Assignments
NOTE:
Your computer's power supply may or may not have the "P7" connector.
DC Power Connector P1
Pin Number
Signal name
18-AWG Wire
1
+3.3 VDC
Orange
2
+3.3 VDC
Orange
3
COM
Black
4
+5 VDC
Red
5
COM
Black
6
+5 VDC
Red
7
COM
Black
8
POK*
Gray
9
+5 VFP
Purple
10
+12 VDC
Yellow
11
+3.3 VDC
Orange
12
–12 VDC*
Blue
13
COM
Black
14
PS ON*
Green
15
COM
Black
16
COM
Black
17
COM
Black
18
N/C
N/C
19
+5 VDC
Red
20
+5 VDC
Red
* Use 22-AWG wire instead of 18-AWG wire.