Dc power connectors – Dell OptiPlex 755 User Manual
Page 170
12.
Replace the floppy drive or media card reader (see
Installing a Floppy Drive
).
13.
Replace the optical drive (see
Installing an Optical Drive
).
14.
Replace the computer cover (see
Replacing the Computer Cover
).
15.
Connect the AC power cable to the power supply AC power connector.
16.
Connect your computer and devices to electrical outlets, and turn them on.
DC Power Connectors
DC Power Connector P1
NOTICE:
To connect a network cable, plug the cable into the network wall jack and then plug it into the computer.
NOTE:
The power supply installed in your computer is one of two options as illustrated below.
Pin Number
Signal Name
18-AWG Wire
1
+3.3 VDC
Orange
2
+3.3 VDC
Orange
3
GND
Black
4
VCC (+5 V)
Red
5
GND
Black
6
VCC (+5 V)
Red
7
GND
Black
8
PS_PWRGOOD*
Gray
9
P5AUX
Purple
10
V_12P0_DIG
Yellow
11
V_12P0_DIG
Yellow
12
+3.3 V
Orange
13
(optional)
+3.3V
Orange
14
-12 V*
Blue
15
GND
Black
16
PWR_PS_ON
Green
17
GND
Black