I have manualy put togheter my PC but something strange happend.
I’ve got an ASUS H110M-R/C/SI, Socket 1151 (Bulk) and my case is a DeepCool TESSERACT SW ATX Mid Tower.
From which left one cable: An HD Audio cable.
The cable itself comes from the audio jack on the front top of the box and I couldn’t find where to put it in the motherboard.
I find the documentation of the motherboard where it was said that the board supports HD Audio.
The pins look something like this:
..... ... .
This is what the cable looks like:
Here I think is the documentation.