Recently I had one of my Evga 670GTX FTWs go bad(after 2 yrs of hard use). Naturally I Rma'ed it to Evga(KR products have 3 yr warranty so I just made it), and they sent out a replacement within a week. Unfortunately they sent out a 770 GTX Superclocked ACX, which made my other working 670 FTW in my build unusable. All I did is explain this situation to Evga, and within minutes, they contacted me apologizing for breaking up my 670 FTW sli, and sent me a RMA for the 2nd,(working) 670GTX FTW! Evga replaced both my 670 FTWs with 770 SC ACXs free of charge!!! Now that's good customer service!! Just thought I'd share, not too often when a company throws $800 of gpus to a customer for free!