Random BSODs - Done lots of troubleshooting

[MauriceS]

I keep getting random BSODs on my system. I have tried the following steps:

- Memory test - for days (Kingston 4x4 sticks installed) No problem detected after 20+ passes
- Updated the Eltron USB3 driver - was implicated in earlier crash
- Changed the video card from a NVidia 9500GT to a an XFX Radeon HD 7750 - looked like a video driver was the problem, after running the driver verifier.
- Machine is solid like a rock running Linux Mint 15. Both with the old as wll as the new video card.
- Went to Gigabyte's site and downloaded their latest drivers for the motherboard.
- Ran SFC /SCANNOW - and included cbs.log into the zip file

I'm stuck. Short of reinstalling Windows 7 - I don't know what else to do.

 

[MauriceS]

When replacing the video card i did use DriverFusion to clean up the mess. This version (install) of windows has had a few different AV's installed: SystemSuite - Comodo, and one time the stuff from McAfee which gets installed when installing Adobe products and not being alert... I ran AQCleanup, the Comodo Cleanup tool, and the McAfee clean up tools. Currently Microsoft essentials is installed. (Which interestingly - does NOT finish a full scan)

This is a self built machine using a Gigabyte board.

 

[MauriceS]

I haven't overclocked my machine or GPU(s), and again the machine is rock solid under linux. It runs for days w/o an issue.

 

[MauriceS]

I ran the long test in SeaTools - and no errors found. Also chkdsk /b didn't find anything bad.
Crystal disk info shows 0 for the hard error counters, and the fans are all spinning, and temperature looks in normal range.