BSOD in unpredictable intervals, Desktop freezes, sound loop.

Hello!

I am, for some time now, experiencing a weird kind of BSOD, sometimes without actual BlueScreen, but windows still tells me it was indeed a BlueScreen after the ReBoot.

It happens in all kinds of Situations. While i play a game that taxes my PC to the limit, while watching Videos, listening to music or while completely Idle.

The sound loop, which appears to be the last sound played before the error occurs, lasts about 10 seconds before the PC reboots automatically. Usually i reset it before that, because the sound is very annoying. When the PC is Idle while it crashes, there is no sound at all, obviously.

I have switched several pieces of Hardware in the last few Months (CPU, GPU, Motherboard) but that didn't seem to affect the Issue at all.

I tried finding help with this issue before, but from what i could find, which wasn't very much since i had almost nothing to go on, i assumed it was a GPU driver issue and there was nothing i could do about it.

Now it's getting really annoying since it's completely random. Sometimes i use my PC for a week without crash and the next day it crashes 3 times in one hour. There seems to be no real pattern. None that i can recognize anyway.

I use the following Hardware in my PC:

AMD FX 8350 @4Ghz
8,00GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Gigabyte GA-78LMT-USB3 (Socket M2)
2048MB ATI AMD Radeon HD 7800 Series (Sapphire/PCPartner)
232GB Samsung SSD 840 EVO 250GB ATA Device (SSD)
2794GB Seagate ST3000DM001-1ER166 ATA Device (SATA)

Also, i attached the File created with the tool mentioned in the How-To Post in this Forum.

The Event Viewer shows some Critical errors, but they all seem to be a response to the unexpected shut down due to the crash and not the reason for the Crash in itself. (Quote from the Error description: "The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."

I'd really appreciate any help with this issue.

Edit: I forgot to mention that i am using SP1 and have all the updates installed that are avaiable via the Windows Updater. I also have the driver verifier enabled right now and i will run memtest tommorrow, since i currently don't have a free USB stick or empty CDs lying around.

So, about 20 minutes after i enabled the Driver Verifier my System froze again. This time without any sound and a different screen. It looked like a partially restored image from a formatted drive where nothing remains of the original image. It's difficult to describe.

The Event log doesn't show anything that seems related, but that could very well be because i have no idea what to look for. Is there anything i can do to add something that could help someone else see the problem?

Edit: Ran the data collection tool again after the "new" verifier provoked crash. Added the zip file as attachment.