Жжём чуму! :D

I had a critical error near the time I was testing the game. The code of the error is 41.

Franzuu, where can I find "event viewer"?

Franzuu, I tested my card again and came to a sad conclusion: no matter what overclocking-utility is turned on my card clock freezes at 400mhz. With utility turned off card works as it should. Maybe it's tied to the fact that XFX blocked voltage manipulating on my card.

Franzuu, I tried all steps and the result is: I had no problems during stress tests. I downclocked GPU as you said and faced something another... Game hasn't crashed since downclocking, but during playing white textures occured and clock of my GPU was standing only at 400mhz. To restore normal clock I had to reboot my system.
So what is it, game or hardware issue?
P.S. I uploaded my Afterburner log. It shows the stat. of my card for last few days. I tried downclocking on 30.03.2014, and decreased my GPU to 647mhz and memory to 1152.

Franzuu, I tried changing the "Power managment mode" while downclocking the GPU, but there was no result.
P.S. I'll try to overclock my card and write back soon.

Yeah, the issue still exists.

Yes, it's still present.

Yes, I'm still able to reproduce it in the latest version.
P.S. DxDiag and other necessary files are uploaded.

Truly,"Verify integrity of game cache" is what I tried at first when the game started to crash and it didn't improve the problem.
Speaking about my graphic card I'm sure that everyting is OK with it because in other games and stress-tests such as MSI Kombustor there're no any problems.
P.S. Sometimes game crashes cause a blue screen with error "nvlddmkm.sys"

Changing versions of driver is what I tried too, but it had no effect. Temperature of the card is OK too, because during the last crash it was 77.
I'm sure that reason of the issue is the game because till the update on 31 December everything was exellent, even on 30 December.
P.S. My issue is very-very similar to this one:
http://feedback.dayzgame.com/view.php?id=6369

In that location I see only DayZ.RPT, BattlEye, MPMissionsCache
Could you tell me how to make those necessary files visiable?