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Inside View of Your Computer

Dell™ Dimension™ 4700C Service Manual

  Internal System Board Components

  Power Supply DC Connector Pin Assignments


CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Be careful when opening the computer cover to ensure that you do not inadvertently disconnect cables from the system board.

Internal System Board Components

Power Supply DC Connector Pin Assignments

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

POK

Gray

9

+5 VSB

Purple

10

+12 VDC

Yellow

11

+3.3 VDC*

Orange

12

–12 VDC

Blue

13

GND

Black

14

PS ON

Green

15

GND

Black

16

GND

Black

17

GND

Black

18

+5 VDC

N/C

19

+5 VDC

Red

20

+5 VDC

Red

*Sense connector.

DC Power Connector P2

Pin Number

Signal Name

18-AWG Wire

1

GND

Black

2

GND

Black

3

+12 VDC

Yellow

4

+12 VDC

Yellow

DC Power Connector P3

Pin Number

Signal Name

18-AWG Wire

1

+3.3 VDC

Orange

2

GND

Black

3

+5 VDC

Red

4

GND

Black

5

+12 VDC

Yellow

DC Power Connectors P4

Pin Number

Signal Name

22-AWG Wire

1

+5 VCD

Red

2

GND

Black

3

GND

Black

4

+12 VDC

Yellow

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