Acer Veriton 5600g Motherboard FP1 Pinouts

User’s Guide Acer Veriton 5600g
Multimedia
• 3-D quality audio system via on board audio controller
• Audio-in/Line-in, Audio-out/Line-out, Headphone-out, and
Microphone-in interfaces
Note: The system has two microphone-in jacks (front and rear).
However, you can not use both of them at the same time. By
default, your system enables the microphone-in jack in front and
disables the one at the back.

hope this helps
Terry.

perhaps you could rate my effort many thanks