BSODs and freezes at random

Welcome to SF kjartanovich :) .

A single dump is not enough to establish a pattern so if you have more please upload the rest.
Please manually check the minidump folder.

Code:

C:\Windows\minidump

If dump files are present in that folder copy them to the Desktop, zip and upload in your next post.

The dump that was uploaded does reflect your description of the problem
with regards of using the GPU and Ethernet.

Please follow this detailed quote and roll-back to a known stable version:

Arc said:

Install the 314.22 WHQL only.

• Uninstall All nvidia items in Control Panel > Programs and features
  
  • 3D Vision Control Driver
  • 3D Vision Driver
  • Graphics Driver
  • HD Audio Driver
  • PhysX
  • nvidia Update
  
  (Are you using nvidia chipset drivers? If so, dont uninstall anything other than those are listed).
• Now follow Drivers - Clean Left over Files after Uninstalling
• Boot normally now. Download 314.22 WHQL. While installing, Select Custom (Advanced) install. In the next page, follow this settings:
  
  

Please update the Ethernet driver:

Code:

lmvm Rt64win7
Browse full module list
start             end                 module name
fffff880`05091000 fffff880`05139000   Rt64win7 T (no symbols)           
    Loaded symbol image file: Rt64win7.sys
    Image path: \SystemRoot\system32\DRIVERS\Rt64win7.sys
    Image name: Rt64win7.sys
    Browse all global symbols  functions  data
    Timestamp:        Fri Feb 03 15:00:02 2012

• Driver Reference Table - Rt64win7.sys

No code has to be inserted here.


Please remove Trusteer, is was loaded and unloaded multiple times and that indicates activity.

Code:

rapportmgmtservice.exe    c:\program files (x86)\trusteer\rapport\

• Install Microsoft Security Essentials instead.

Test for thermals and stability:

What is the make, model and age of your PSU?
Fill out this form and post back the result:

• Power Supply Calculator

• Download HWinfo and post a Screenshot of the sensors window, one at idle and another while putting load on the PC using Prime95 for the CPU side and Furmark for the GPU.
  
  • Before running Prime95 make sure to enable Round-off checking (see 1st post under the tutorial).
  
  

Post back with the results :) .

Thanks for the update :), a few things:

kjartanovich said:

got stuck at the driver: aswRvrt.sys

This is an Avast driver please remove it using these steps.

• avast! Uninstall Utility | Download aswClear for avast! Removal

kjartanovich said:

The GPU on the other hand was hitting 109 on the core and at that point throttled to 50% and
shortly thereafter shut down the system.
The system had been under full load for 10-15 minutes.
I guess my GFX card is not doing to well.
Will try and take it out and give it a thorough cleaning. On the other hand, this is the first time I have
ever heard the fans on the GFX fire up, under normal use this never happens and I don't game anymore.

Yes that is not very healthy, keep me updated on how it goes.

kjartanovich said:

By the way, I can't find any more .dmp files than the one I uploaded. Any idea why they are not there?

As a matter of fact I do. CCleaner removes them when cleaning the system, please refrain from using
the software for the entire time we are troubleshooting as we need them :) .

kjartanovich said:

Many of the freezes and shutdowns had no BSOD, only very recently did I get BSOD's.

This may very well be due to thermals of the GPU.

kjartanovich said:

The PSU is an 'old' HKC Modular model from 2009 (GFX might be from the same time too).
I think it is a 630W model

It's a bit dated now, but I don't want to kill it off prematurely, unfortunately the one thing missing
from the HWinfo screenshots is the Voltage readings, please upload those :) .

Hello again :).

Well no it doesn't I was looking for a specific part which is missing between the screenshots.
Attachment 301284

Have you had any bugchecks (BSOD's) while using MSE?
I see you're now using Avast again.