Dell OptiPlex GX280 - Manual (Page 113)

DC Power Connector P5
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 P6, P8, and P9
Pin Number Signal Name 18-AWG Wire
1
+12 VCD Yellow
2 COM Black
3 COM Black
4 +5 VDC Red
DC Power Connector P7
Pin Number Signal Name 22-AWG Wire
1
+5 VCD Red
2 COM Black
3 COM Black
4 +12 VDC Yellow
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