Dell OptiPlex 755 - DC Power Connector P3; DC Power Connector P4; DC Power Connector P5 and P6

160 Power Supply
DC Power Connector P3
DC Power Connector P4
DC Power Connector P5 and P6
Pin Number Signal name 18-AWG Wire
1 +12VDC Yellow
2GNDBlack
3GNDBlack
4+5 VDCRed
Pin Number Signal Name 22-AWG Wire
1+5 VDCRed
2GNDBlack
3GNDBlack
4 +12 VDC Yellow
Pin Number Signal name 18-AWG Wire
1 +3.3 VDC Orange
2GNDBlack
3+5 VDCRed
4 3 2 1