Hey, so since the Sapphire Tri-X is going to be released in a while in my country i'm thinking of getting the stock 290 and get a waterblock/custom cooler. The price of the 290 is still around 400$ here. Now the problem is that if i put waterblock i need a lot of maintenance and if i put custom cooler it might void the warranty. Which one is better? And is there a manufacturer that won't void the warranty if i use custom cooler?