I used Artic SIlver adhesive to hold the MCW50 wb to the gpu of the MSI 5900 Ultra, and guess what? Somewhere along the way, I must have fried the vid card somehow. I get a ton of artifacts on the screen. I did use the video card several times before modding it and it ran flawlessly. Ah man, I am so ****ed. $500 down the drain. Later on, I purchased a BFG 5900 Ultra and installed it in my computer w/o modding it. I even have 2 rads in series to prepare for cooling the cpu and gpu down. Now it is all to waste. Such is life, eh?