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Technical Overview

Dell™ Dimension™ XPS Series Service Manual

  Inside View of Your Computer

  System Board Components

  Power Supply DC Connector Pin Assignments

Inside View of Your Computer

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

System Board Components

Power Supply DC Connector Pin Assignments

DC Power Connector P1

Pin Number	Signal name	18-AWG Wire
1	+5 VDC	Red
2	COM	Black
3	+5 VDC	Red
4	COM	Black
5	PWR GOOD	White
6	+5 VSB	Purple
7	+12 VA	Yellow
8	-12 V	Blue
9	COM	Black
10	COM	Black
11	+3.3 VDC	Blue and white
12	+3.3 VDC	Blue and white
13	PS-ON	Gray
14	COM	Black
15	COM	Black
16	COM	Black
17		N/C
18	+5 VDC	Red
19		N/C
20	+5 VDC	Red
21	TSFC (1)	Brown
22	+5 VDC	Red
23	+3.3 VDC	Blue and white
24	COM	Black

DC Power Connector P2

Pin Number	Signal Name	18-AWG Wire
1	+3.3 VDC	Blue and white
2	+3.3 VDC	Blue and white
3	+3.3 VDC	Blue and white
4	+3.3 VDC	Blue and white
5	COM	Black
6	COM	Black
7		N/C
8	COM	Black
9	+12 VA	Yellow
10	COM	Black
11		N/C
12	+12 VB	Orange
13	+12 VB	Orange
14	+12 VB	Orange
15	COM	Black
16		N/C
17	COM	Black
18	COM	Black
19	TSFC (2)	Pink
20	+5 VDC	Red

DC Power Connector P3

Pin Number	Signal Name	18-AWG Wire
1	COM	Black
2	+12 VA	Yellow
3	+12 VA	Yellow
4	COM	Black
5	COM	Black
6	+5 VDC	Red
7	+5 VDC	Red
8		N/C
9	+12 VB	Orange
10	COM	Black
11	COM	Black
12	+5 VDC	Red

DC Power Connector P4

Pin Number	Signal Name	18-AWG Wire
1		N/C
2	COM	Black
3	COM	Black
4	+3.3 VDC	Orange
5	+5 VDC	Red
6	+12 VDC	Yellow

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