Made this thread here, so that I wouldn't derail the Q&A thread.

I have been noticing grey screen crash. It happens sometimes in games and benchmarks (with 9.10, 9.11, 9.12 and 9.12 hotfix). Turning off/deactivating ATI HDMI sound drivers seems to help this. There has been several reports of this issue on various forums and people think it relates to powerplay. A bios have also been created to remedy this issue for 5850. I wondered if ATI is working on this issue?

Here is some related threads:

5870 Vertical lines Crash (picture of the issue in first post)
http://forums.overclockers.co.uk/showth ... t=18087665

5870 gray screen crash.
http://www.hardforum.com/showthread.php?t=1466677

5870 Crashing [FIX]
http://forums.amd.com/game/messageview. ... erthread=y

Gray screen crashes
http://forums.guru3d.com/showthread.php?t=309921

and finally a bios for the 5850 that supposedly fixes this (from AMD developer central member):
Fixed *all* issues with Ati Radeon 5850 HD Graphics
http://forums.amd.com/forum/messageview ... did=123623

Personally, I find this problem so severe that I consider it a deal breaker. I hope ATI are working on this. If there is a BIOS that ATI thinks might fix this, I am willing to flash my card with it

Update: I flashed the bios to this one:
http://www.techpowerup.com/vgabios/6184 ... 91112.html

Had to reinstall drivers afterwards, since I went from Asus to ATI bios. So far, no vertical line crashes.

I am going to do some more testing and longer benchmarks to see if it holds

Edit:

It was holding through several runs of Furmark, 1.5 hour of RE5 loops, but it crashed after 10 minutes of gameplay in L4D2.

Dave, any new bios' to try?