It would appear your cause is due to sgfxk64.sys which is the SMSC Graphics Adapter Driver. You should update it here:
http://www.microchip.com/pagehandler/en-us/technology/pcsystems/home.html
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* *
* Bugcheck Analysis *
* *
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Use !analyze -v to get detailed debugging information.
BugCheck 116, {fffffa800fb400d0, fffff88004f3cfe0, ffffffffc00000b5, a}
Unable to load image \SystemRoot\system32\drivers\sgfxk64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for sgfxk64.sys
*** ERROR: Module load completed but symbols could not be loaded for sgfxk64.sys
Probably caused by : sgfxk64.sys ( sgfxk64+bfe0 )
fffff880`04c26000 fffff880`04c4c000 sgfxk64 T (no symbols)
Loaded symbol image file: sgfxk64.sys
Image path: \SystemRoot\system32\drivers\sgfxk64.sys
Image name: sgfxk64.sys
Timestamp:
Fri Sep 07 22:11:14 2012 (504A62F2)
CheckSum: 00031B4A
ImageSize: 00026000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
As you can see it's quite outdated. Updating it should fix it.