[cabojoe]

QPI is not memory. There are 2 QPI channels so that the two sockets with processors in them can form a triangle with the IOH.

http://www.hardwaresecrets.com/fullimage.php?image=12241

sigh

[antiRepublicrat]

I said I’d set you down the right path, I did not say QPI is memory. With dual-QPI comes an extra set of memory registers...