HP Pro 3330 - 4-Pin Power Connector (for CPU)

Line-in Audio
Connector and Icon (1/8” miniphone) Pin Signal
1 (Tip)
2 (Ring)
3 (Shield)
Audio_In_Left
Audio_In_Right
Ground
Line-out Audio
Connector and Icon (1/8” miniphone) Pin Signal
1 (Tip)
2 (Ring)
3 (Shield)
Audio_Out_Left
Audio_Out_Right
Ground
4-Pin Power (for CPU)
Connector and Icon Pin Signal
1
2
3
4
GND
GND
+12V CPU
-12V CPU
130 Appendix A Connector Pin Assignments