There are many options when it comes to cooling your graphics card. You can use just a simple water block for exclusively the graphics processor and use glue or tape on air cooled heatsinks for the memory and power circuits, or you can use a full coverage style block like the one we have chosen. The DD-8800GTS. This block is a full coverage style block that cools not only the GPU, but the memory and power regulation circuits as well. Danger Den states that one should be able to gain a 30 percent overclock by using this particular block. That's a pretty impressive claim I must say. Let's dig a little deeper into this full coverage block to see what it has in store for us.