BSOD - Multiple With Different STOP Errors?

I have been trying to resolve some BSOD I got on my PC. To do this I also re-installed windows several times. I build and install everything by myself for years, but this is the first PC with a lot of BSODs. I used the Debugging Tool for windows to check the minidumps by myself, but as far as my knowledge goes, I didn't find anything special in there. The only thing that was obvious was that in all BSODs the ntoskrnl.exe was involved. This was something BlueScreenView revealed also. In my opinion however it seems there is more to it, since the ntoskrnl.exe could probably also crash because of another driver or hardware problem.On my previous fresh Windows 7 Install I did found out once that alot of BSOD I had at that time were caused by a bad Creative driver for my X-Fi. On the web I found a useful hint, because other X-Fi users pointed to the beta-drivers for the card. The official Creative drivers are almost two years older then these beta drivers, so obviously the beta drivers should be the first choice. These drivers are the ones I use now. I also had some problem with my OCZ Vertex 3 MI, like most owners of this hardware, and the problem was the unstable firmware. I am using the latest firmware now, which is 2.15, and that made the system alot more stable. The third problem is happening in POST: my logitech G110 keyboard features an USB hub and connection for media. These kind of USB keyboards had some problem with recognision and initialisation in the UEFI BIOS. For that I also updated to the latest BIOS for my motherboard.

All in all you can see I discovered and tried to fix a lot of different causes for BSODs. I also ran memtest once on the system for two hours, but this was in Dual Channel setup. Didn't gave any errors anyway.The latest minidump is created by the use of Verifier. I turned verifier on to test the two drivers for my AMD HD6970(crossfired). After 5 minutes in windows the BSOD appeared. I am using AMD Catalyst 12.1 drivers. I tried this, because the BSODs all are different then the ones I had on previous Windows 7 installations (on the same pc), but the only thing I changed in the current installation, was the AMD 12.1 drivers.I reinstalled windows about two weeks ago, after using Secure Erase on my SSD. I installed only the latest drivers for all the things that need drivers. The complete installation, including windows updates and drivers, was without any fault. One day later the first BSOD appeared, etc. I use the system to play Battlefield 3 only, since the fresh install. Strangely, I played more then 50 hours in the game, without any crash or BSOD! The new AMD FX-8150 processor is the first to support native 1866 MHz DDR3. The motherboard specification showed that the board supported 1866 (OC), thus it's seen as an overclock. I set all settings in bios like the ram specificiation told, which is: 9-11-9-27 2T @1.65V. Still, it could be that the 1866 MHz is too much on standard NB voltages? It's something I couldn't find an answer to on the internet, and since I never overclock I don't have that much experience with the voltages.

All BSODs happened in different situations, like just after windows log in, or when I start a program, or when idling, or when browsing the internet.Since I couldn't figure out any more usefull details out of the minidumps, I hope someone here with more experience could check the attached files.