Dell OptiPlex GX280 - Manual (Page 109)

2 +3.3 VDC Orange
3 COM Black
4 Red
5 Black
6 Red
7 Black
8 Gray
9 Purple
10 Yellow
11 Orange
12 Blue
13 Black
14 Green
15 Black
16 Black
17 Black
18 N/C
19 Red
20 Red
*Sense connector.
DC Power Connector P2
Pin Number Signal Name 18-AWG Wire
1
+3.3 VDC Orange
2 COM Black
3 +5 VDC Red
4 COM Black
5 +12 VDC Yellow
DC Power Connectors P3 and P4
Pin Number Signal Name 18-AWG Wire
1
+12 VDC Yellow
2 COM Black
3 COM Black
4 +5 VDC Red
DC Power Connector P5