OK, both dumps you have given are showing the NVidia display driver as the cause of the crashes. The driver seems to be up to date:
0: kd> lmvm nvlddmkm
start end module name
fffff880`04acb000 fffff880`055ec000 nvlddmkm T (no symbols)
Loaded symbol image file: nvlddmkm.sys
Image path: \SystemRoot\system32\DRIVERS\nvlddmkm.sys
Image name: nvlddmkm.sys
Timestamp: Sat Dec 01 03:24:02 2012 (50B97852)
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
However, some other drivers seem to be out of date:
WinRing0x64.sys Sat Jul 26 14:29:37 2008 (488B26C1)
many different programs that center around the using of the WinRing libraries (found in Real Temp directory in this topic: Randomly Reoccurring BSOD - ntoskrnl.exe - Windows 7 Forums
UltraMonUtility.sys Fri Nov 14 01:10:30 2008 (491CD006)
Lycosa.sys Wed Sep 8 04:01:26 2010 (4C86FC86)
Razer Lycosa/Razer Tarantula Keyboard Driver. Older versions have BSOD
issues with Win7
Links are included to assist in looking up the source of the drivers. If unable to find an update, please remove (un-install) the program responsible for that driver. DO NOT manually delete/rename the driver as it may make the system unbootable!
Once those have been updated, run some hardware tests based around the graphics card.
- Try running Furmark
to stress test your GPU. Select your resolution and enable:
- Xtreme Burn-In
- Post FX
- Settings -> Log GPU Temperature
Stop the test if any artifacts appear on the display or temperature levels exceed 90C. If no artefacts or distortion appears on the screen, consider the test passed. If artefacts do appear, make sure the card is properly seated. A full tutorial is available here: https://www.sysnative.com/forums/hardware-tutorials/3907-furmark-display-card-stress-test.html
- Then use the Video Memory Stress Test 1.7.116
to test your graphics card memory. Let the memory test run for at least seven passes; the more the better.
- Finally run Prime95 (64bit
) Please run the 'SmallFFTs' then the 'Large FFTs tests. If any errors occur, stop the tests and post them back here. Once again, a full tutorial is found here: https://www.sysnative.com/forums/hardware-tutorials/3908-prime95-hardware-stress-testing.html
It is important to keep an eye on your computers temps during these tests. To do so, try the following software.