Quote Originally Posted by DefStar View Post
Yes, I have a Sapphire 4870 also and while running 8.7 drivers twice I had my display go out and the fan rev up just like you described. Now, I changed my drivers to 8.8 official today and I lost my display four times within an hour same problem as you described. So, I flashed back to the Sapphire bios and I'm having no problem with the 8.8 drivers now... Their is some kind of problem.
Having exactly the same issue's, but they only started after 4 days of having cat's 8.8. Just flashed back to a newer Sapphire bios from tech powerup and I now have max overdrive clocks in ccc of 850/1200, this is a newer bios than my card came with. I had to use this one as my original bios I backed up would not load, although rbe reads it perfectly ok.