Dell OPTIPLEX 740 User Manual

12. Replace the computer cover (see Replacing the Computer Cover).
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13. Connect the AC power cable to the AC power connector.
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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
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
+3.3 V
Orange
14
-12 V*
Blue
15
GND
Black
16
PWR_PS_ON
Green
17
GND
Black
18
GND
Black
19
GND
Black
20
NC
N/C
21
VCC (+5V)
Red
22
VCC (+5V)
Red
23
VCC (+5V)
Red
24
GND
Black

Dell OPTIPLEX 740 Specifications

General

Brand	Dell
Model	OPTIPLEX 740
Category	Desktop
Language	English