thanks David for your reply….
i know about the Cubix thing, i was trying not to invest in that, since im in Lebanon and shipping it over here plus taxes will make it cost a fortune and for now im grading max 2k Footage, just need the speed when i apply noise reduction.
i have Mac pro old version 8 cores, nVidia K5000 4GB already, and was planing to get the cubix for that, but after i made a test, that PC could handle 20 nodes with blurs, while the Mac 10.
so i thought i can change the motherboard and cpu and have a mother board that has 3 pci slots 16x so i can use the 3 cards i have.
sure need extra 1 or 2 pcie for decklink and maybe some other card for future.