Dell OptiPlex 320 - DC Power Connectors

11. Replace the CD/DVD drive (see Installing a CD/DVD Drive).

12. Connect the AC power cable to the connector.

13. Replace the computer cover (see Replacing the Computer Cover).
DC Power Connectors

DC Power Connector P1

Pin Number

Signal name

18-AWG Wire
1
+3.3 VDC
Orange
2
+3.3 VDC
Orange
3
GND
Black
4
+5 VDC
Red
5
GND
Black
6
+5 VDC
Red
7
GND
Black
8
PS_PWROK*
Gray
9
P5AUX
Purple
10
+12 VDC
White
11
+12 VDC
White
12
+3.3 VDC
Orange
13
+3.3 VDC
Orange
14
-12 VDC*
Blue
15
GND
Black
16
PWR_PS_ON*
Green
17
GND
Black
18
GND
Black
19
GND
Black
20
NC
N/C
21
+5 VDC
Red
22
+5 VDC
Red