I'd like to install a PCIe to M2 adapter in my T3600. There are two x16 ports on the 8HPGT, but I would have to install the adapter in the top slot to keep from totally blocking my GPU fan.

I can't find information on whether or not the second x16 is still connected directly to the CPU or if it runs through the PCH.

I don't want to strangle my GPU bandwidth, and if I have to, I guess I'd rather run the M2 adapter through an x4 port. Just wondering if that's what it'll come down to.