BSOD under stress, Bugcheck code 1E/3B

Hey!

I have been struggling with a problem for about two months now. It all started with WoT giving blue screen after playing awhile (sometimes over 1h). I thought it was because of overheating cpu and bought a new cooler to replace my stock one. It seemed to help, but the problem came back. Now im getting BSOD in bf4 and sometimes even while browsing(but this is rare). Under stress the bsod comes 100%, especially if i have the graphics on "high". Usually it the screen freezes, sounds start looping and it goes to blue screen. Now i have gotten a few times only a distorted screen and no bsod.

What i have done:
I have ran memtest overnight.
Tested gpu with Furmark, no problems in 15min burn-in test.
Tested cpu with Everest stress test, cpu wont go over 53 celcius.
Re-installed windows twice, tried to find all the updated drivers. (there is one thing in my device manager that bugs me, USB controller is marked with yellow exlamation mark, something wrong with drivers?)

Flashed bios to newest version.

edit: I also am currently running driver verifier to find if it is the drivers causing bsod, so far no new bsod's have happened, but i have not stressed the system either.

So this is pretty much my last resort, im completely out of ideas, and my gf is getting really mad at me for staring at my screen 24/7.

Just be patient, there are a lot of BSOD posts that need attention.

I'll get to yours shortly.

Code:

fffff880`05936408  fffff880`04045b36Unable to load image \SystemRoot\system32\DRIVERS\atikmpag.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for atikmpag.sys
*** ERROR: Module load completed but symbols could not be loaded for atikmpag.sys
 atikmpag+0x45b36

Code:

Name	AMD Radeon HD 7900 Series
Driver	c:\windows\system32\drivers\atikmpag.sys (8.14.1.6354, 611.50 KB (626,176 bytes), 12/6/2013 10:21 PM)

Try updating your video display driver.

Code:

Host Name:                 KONTIO-PC
OS Name:                   Microsoft Windows 7 Ultimate 
OS Version:                6.1.7601 Service Pack 1 Build 7601
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          Kontio
Registered Organization:   
Product ID:                00426-OEM-8992662-00006
Gigabyte GA-Z77M-D3H (rev. 1.0)

There may be other issues brought on the tampered files in your counterfeit Windows 7 installation. These modified parts of the installation can be the cause of the BSOD's because they make the installation behave in an unpredictable manner. For this reason many analysts won't work on these types of installations.

Install a genuine version of Windows 7 to avoid these problems.