Trying to setup a custom water cooling loop for both of my HD 6950's. My issue is trying to determine which water block will fit. I have never done a custom loop before and don't want to shell out several hundred dollars for the wrong part(s). I will be keeping my H100i just for the CPU (in case you are wondering). This is the card I have (x2): http://www.newegg.com/Product/Product.aspx?Item=N82E16814150549 This is the waterblock I think will work: http://www.xoxide.com/koolance-vid-ar697-waterblock.html My only concern is "reference" versus "non-reference" cards. Not sure how to tell the difference and because of that not sure which water block is correct. Any help would be appreciated. Thanks.
