Grey screen thin verticle lines with 5870?

Ive been having this issue only occasionally when playing MW2 and GTA4, the only games I'm playing currently using ATI 9.11 driver. The screen will flicker grey for a moment then stay that way and I cant do anything but reboot to clear it. This also happened with the 9.10 driver. Anyone else that have the 5800 series or earlier cards seeing this issue. It must be a video driver issue. I will go days without it happening as well. Im still using the Win 7 Beta release 7100. Not sure if that could be an issue either. I have my fan set at 45% manual with ATI Overdrive on. Thanks for any input or possible fixes.

Same problem here. Win7 x64 and Asus ATI 5850 and 9.11 drivers. Problem seems to occur more and more.

Same here. XFX 5870 XXX edition, W7 pro 64 bit.

Under-clocking the card ended the problem for me...

I have the same problem asus 5850 asus p7p55d corei5 same with cat9.11 cat 9.12 win7 64bit.

I had the same problem until I set my core and memory settings to anything other than stock timings with ATI Overdrive.

It appears that the relaxed memory settings do not drop to the levels they are supposed to with stock settings. My system hasn't had a single issue since I changed the GPU clock to 900 and the memory clock to 1250, which was a few weeks ago. I even gained a few FPS in the process.

I'm using Win 7 64bit with Cat 9.12 atm.

Hey Bystander what do you set your fan speed at with those settings?

I let Overdrive deal with fan speeds. It seems to run between 20% while idle up to 31% under load, and I've seen it hit 34%.

So far, it's automated fan program has kept the processer below 71C, so I felt no need to adjust it.

All the evidence I've seen from my personal experience has lead me to believe it's memory over heating.

If I'm playing an intensive GPU game for prolonged periods, I'd get the vertical line problem until I actually underclocked the memory by 50 (I might be able to go closer to stock, but haven't tried).

The previous fix helped a lot, as it cooled the memory while idle or in 2D mode, but if I stay in 3d mode for a while, it would eventually give me the problem after a while. After underclocking the memory to 1150, and overclocking the core to 900, I have never had the issue again. I still ended up with better than stock performance, as the memory speed has less impact on performance than the core overclock.

That probably was a defect. It doesn't fit the description of the problems they are having.

Still happening here.
Clean install of win 7 64bit.
Ran the hotfix from ATI.
Same issues. Nothing's over clocked and nothing is overheating. This is driving me bats. I didn't get this card to test my troubleshooting abilities.

If it ends up being something that wrecks the warrenty as a fix, such as a bios flash, XFX are getting this card back.

Really old thread. I'd suggest starting a new one. And that hotfix knight mentioned is nearly a year old now, so I'd recommend getting the newest drivers from amd.com .