Malik, using ek 4 on SB wont allow you to stick your vga into first pcie slot while using stock coolin on your vga. Therd are 2 ways in this case. First is to watecool your vga. It will surely make space for almost any sb waterblock. Second is to use different from ek watereblock. For example mips asus universal sb freezer. It has holes located in lower part of waterblock, and the are horizontaly oriented