Question intel DX79SI motherboard unknown pins

[sialu]

I've an old DX79si motherboard that seems to have some extra pins, I can't find them listed in the specifications
anyone know what they might be for?

1. three pins
2. six pins (two rows)

here's a photo of 1

and 2

this one says J307 right next to it

 

[Deleted member 362816]

2 is for the bios jumpers. As #1 PJ136(cdg) I have no idea.