Do not use Waterblock on XFX, it voids warranty
I realize this is kind of a cross post but I wanted to make sure everyone here knows this and maybe you do. If you damage the label on the back of an XFX video card in order to get to the screws, your warranty will be void.
To be honest, when I removed the label I had a pretty good idea that it was voiding the warranty, but some people here told me to RMA the card because XFX allows aftermarket cooling solutions without voiding the warranty. The label is thick plastic and covers the screwholes completely, at least on the GT200 series. You will have to damage the label in order to get to the screws, there is no way around this(Catch 22).
You can install an aftermarket cooling solution but you can't damage the label to get to the screws under the label. XFX told me warranty denied because of water damage to the card and sent me a picture of the back of the card where I peeled off the label(like it was caused by water). I told them I peeled the label off and then they came back and said the card was wet(this is a lie). I never got water on the card.
I would have been OK with the loss if they would just come out and said that you can't take the card apart to install a WB because this will void the warranty. What bothers me is that they want to be able to claim that they will honor a warranty for installing aftermaket cooling solutions but then they design the card where you have to do damage to the card to take it apart. Now they are lying about the card being wet. I knew I should have bought an EVGA card but I couldn't find the FTW in stock anywhere.
Sorry for the rant.