Dell XPS/Dimension XPS Gen 5 - Manual (Page 53)

DC Power Connector P1
DC Power Connector P2
Pin Number Signal name Color Wire Gauge
1 +3.3 VDC Orange 16-AWG
2 +3.3 VDC Orange 16-AWG
3 COM Black 18-AWG
4 +5 VDC Red 18-AWG
5 COM Black 18-AWG
6 +5 VDC Red 18-AWG
7 COM Black 18-AWG
8 POK Gray 18-AWG
9 +5 VFP Purple 18-AWG
10 +12 VADC Yellow 18-AWG
11 +12 VADC Yellow 18-AWG
12 +3.3 VDC Orange 16-AWG
13 +3.3 VDC/SE Orange 16-AWG
14 -12 VDC Blue 18-AWG
15 COM Black 18-AWG
16 PS-ON Green 18-AWG
17 COM Black 18-AWG
18 COM Black 18-AWG
19 COM Black 18-AWG
20 N/C N/C N/A
21 +5 VDC Red 18-AWG
22 +5 VDC Red 18-AWG
23 +5 VDC/SE Red 18-AWG
24 COM Black 18-AWG