Dell Dimension C521 Service Manual

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Power Supply DC Connector Pin Assignments

DC Power Connector P1

The real-time clock is being reset (jumpered temporarily).
jumpered unjumpered

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
White
11
V_12P0_DIG
White
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

Dell Dimension C521 Specifications

General

Brand	Dell
Model	Dimension C521
Category	Desktop
Language	English