DCS 1.2.3 graphics Radeon HD7950 card freeze/ Grey Screen of Death

[gabuzomeu]

Hi, all

I am encountering a systematic Grey screen of death (ie grey screen, vertical stripes, sound looping) when during a mission displaying the new Su-27 in F2 external view.

When suppressing the texture file Su-27.zip the problem does not occur.

Anyone facing same problem? Or having any clue on what happens?

 

Any help welcome,

best regards

 

NB: I'm using driver 13.2 beta 7, but tested with 12.10 and 13.1 for the same result.

I also tested the card memory and stress (using RoF , up to 2.9GB out of 3 and also vido mem stress test!)

Reinstalled DCS and DirectX

Recently I installed then desintalled Face TrackNoIr.

[SkateZilla]

i think I'm still on 13.2 Beta 5.

 

Grey Screen with Lines is a Memory Heat or Stability Problem. Memory and GPU Crashes, Sometimes WDDM can Recover the Display Driver and boot you back to desktop.

 

Stress testing is 1 Dimensional, it either stresses the GPU or the Ram, and not both at the same time.

(ie I can Bench at 1.3Ghz GPU and 7Ghz Memory, and pass stress tests, but as soon as I boot up and play 4 or 5 minutes in BF3 or DCSW, My system just falls on it's face. and the display driver repeatedly attempts to recover until i manually end process or reboot, most of of time i have to force a reboot.)

 

Try putting Power Tune in AMD CCC up to +10 or +20.

 

Try Lowering Memory Clocks 50-100Mhz,

 

If one of those fixes the problem, then it's a power/stability issue.

 

 

I have a Pre-Boost Sapphire 7950OC at 1.2Ghz GPU, 6Ghz memory. and the new flanker renders fine here.

Edited March 6, 2013 by SkateZilla

[Mustang]

If all else fails theres the option of trying a BIOS change for your card, your model is listed here with the available files

 

http://www.techpowerup.com/vgabios/index.php?page=1&architecture=&manufacturer=Sapphire&model=HD+7950&interface=PCI-E&memSize=3072

[SkateZilla]

The Sapphire 7950 OCs should have a BIOS Switch.

 

Also Monitor Temps. DCSW Pushes my GPU more than anything else (except FurMark and Kombuster etc)

[gabuzomeu]

-> Great support, guys

Dropping memory clock 50Hz and +10% power in CCC makes the trick.

-and I've been around this for days: many many thanks!!

Gabu

[SkateZilla]

you can prolly just bump the VDDC/MV up some in the sapphire program and put the clocks back.

 

sometimes they dump the mv down to far in the BIOS, and some chips dont like how low it is.