Thanks for the info guys. What temps do the stock 5850/5870 run at? Running Furmark, mine goes to 85C. If I tick the Xtreme Burning Mode on FurMark it shoots up to 95C, at which point I stopped the test! Please don't do this to your card. it's making my blood curdle... 5850 stock cooler runs about ...

Although safe, your load temps are on the higher side. A slightly higher speed fan attached to the HR-03 would give excellent results. With a 5750 & HR-03, was getting 40c idle and between 55-60 full load w/92mm medium speed Panaflo on the side panel (blowing on the card). Just guessing the 5770 wou...

This is really nice card and worth the premium (at least to me). The heatsink looks pretty high though, would this card fit in say, Silverstone SG05? I tried to fit in a Sapphire 5750 with a Thermalright HR-03 Rev. A cooler, but the heatpipes are simply too high (by a few mm).. Would love to get thi...