Dell Dimension 3100/E310 - Manual (Page 50)

Power Supply DC Connector Pin Assignments
DC Power Connector P1
Pin Number Signal Name Color Wire Gauge
1 +3.3 VDC Orange 18-AWG
2 +3.3 VDC Orange 18-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 VB DC Yellow 18-AWG
11 +12VB DC Yellow 18-AWG
12 +3.3 VDC Orange 18-AWG
13 +3.3 VDC Orange 18-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 18-AWG
21 +5 VDC Red 18-AWG
22 +5 VDC Red 18-AWG