Hello, and good day to all!
I have recently procured a Tadao Ebisu board to install in my 03 Excal, but I have run in to a few small problems regarding the instruction manuals deficiency in explaining some of the sockets(perhaps a deficiency on my part?

) However, I'd like to know for certain what these sockets are for specifically(marked in the red circle), the others are quite obvious, and well explained, but if you have any further information/help you could offer with them as well it would be most appreciated :
And I guess another photo to go along and show off. Basically stock everything, though the seller included a WAS board manual for some unknown reason, and told me it was a WAS board installed, it however turned out to be Chaos Pandora board:
