Hey all, I've had my 5850 for a while now, and I'm loving it! Came with the stock reference cooler in all its black goodness. Recently the fan has been making lots of noises and getting on my nerves, so its time for the ever faithful aftermarket cooler. I've heard good things about the Arctic Cooling Accelero Twin Turbo Pro, but it wont natively fit the 5850 (it will with a coupla snips of HS fins). Zalman have also released the VF3000A, which seems to work better, but i prefer PWM rather than manual fan control. Does anyone have any other ideas? Or any help as to what to get? UPDATE: Well, I went ahead and purchased the Twin Turbo Pro fully realising that it might need some hacking to fit right. Much to my suprise, there must be a new model out that perfectly fits the 5850 Pictures speak for themselves! The card before modification: Click to view full size! The cooler as it arrived (note the "update" sticker): Click to view full size! Updated cooler has cutout: Click to view full size! My 5850 post cleaning (the worst was cleaning the memory - it was all oily): Click to view full size! The card again after installation of the Memory and VRM heatsinks: Click to view full size! Post installation data (Ignore the fan speed - sensor not reading that correctly) Click to view full size!