So my new rig has the GTX 770 2gb Superclocked (PN:02G-P4-2771-KR) and I would like to upgrade to SLI. If I get the GTX 770 2gb Superclocked with ACX cooler(PN:02G-P4-2774-KR) will I have issues going SLI or is the ACX cooling system the only difference?