Headphone surround works only in front jack

[CoolDude123]

I have a headset (Sennheiser HD 201)
My mobo is Gigabyte H110m s2ph
My case is Corsair Spec 01
When i connect my headset to the front jack, the 7.1 surround works properly
but when i connect it to the jack behind in the motherboard it only works in stereo.

does that mean my mobo only supports stereo?

 

[Ralston18]

The only way to know "what is what" is to open the case and check the relevant audio cable connections.

The front jack may be connected to an audio/sound card that supports 7.1.

The "jack behind in the motherboard" may be a motherboard jack that does indeed support only stereo.

Check both the motherboard and audio card specifications to verify what is what.