Not sure what to do with my 5800 ultra. The fan doesnt run in windows, and sounds like a turbine when running anything 3d. In windows without the fan running it runs like 65degrees celsius and is creating problems for the rest of the system. I just swapped in an mx440 and lowered the cpu (Opteron) temp by about 23F. I really like the performance of the card.
Has anybody tried the Zalman ZM80C-HP
http://www.xoxide.com/zazmvgaheco.html
Has anybody tried the Zalman ZM80C-HP
http://www.xoxide.com/zazmvgaheco.html