SLI Compatability Question
Well I just purchased a GIGABYTE K8NXP-SLI and 1 XFX GEFORCE 6800 GT, I was planning on later on possibly getting another 6800 card. well i haven't even recived the merchandise (ground shipping) but I happened upon the cash to buy another 6800 and probably wont get another chance for along time so..... anyway my question is this, does it matter what brand or what features a card has to make it compatable or will any brand of 6800 gt work with another? I know this is a stupid reason but with the price of these things I would like to get all the perks and that includes different software bundles (why do I need 2 copies of the same stuff)