Don't know what caused this BSOD

BSOD Analyze

Code:

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*                        Bugcheck Analysis                                    *
*                                                                             *
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Use !analyze -v to get detailed debugging information.

BugCheck 116, {fffffa8005de64e0, fffff880119a4654, 0, 2}

Unable to load image nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+14a654 )

Followup: MachineOwner
---------

0: kd> !analyze -v
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*                        Bugcheck Analysis                                    *
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VIDEO_TDR_FAILURE (116)
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa8005de64e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff880119a4654, The pointer into responsible device driver module (e.g. owner tag).
Arg3: 0000000000000000, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 0000000000000002, Optional internal context dependent data.

Debugging Details:
------------------


FAULTING_IP: 
nvlddmkm+14a654
fffff880`119a4654 4055            push    rbp

DEFAULT_BUCKET_ID:  GRAPHICS_DRIVER_TDR_FAULT

BUGCHECK_STR:  0x116

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`04426888 fffff880`07708000 : 00000000`00000116 fffffa80`05de64e0 fffff880`119a4654 00000000`00000000 : nt!KeBugCheckEx
fffff880`04426890 fffff880`07707d0a : fffff880`119a4654 fffffa80`05de64e0 fffffa80`05fadc00 fffffa80`05e5b1a0 : dxgkrnl!TdrBugcheckOnTimeout+0xec
fffff880`044268d0 fffff880`077aef07 : fffffa80`05de64e0 00000000`00000000 fffffa80`05fadc00 fffffa80`05e5b1a0 : dxgkrnl!TdrIsRecoveryRequired+0x1a2
fffff880`04426900 fffff880`077d8b75 : 00000000`ffffffff 00000000`0006cdde 00000000`00000000 00000000`00000002 : dxgmms1!VidSchiReportHwHang+0x40b
fffff880`044269e0 fffff880`077d72bb : 00000000`00000102 00000000`00000000 00000000`0006cdde 00000000`00000000 : dxgmms1!VidSchiCheckHwProgress+0x71
fffff880`04426a10 fffff880`077aa2c6 : ffffffff`ff676980 fffffa80`05e5b1a0 00000000`00000000 00000000`00000000 : dxgmms1!VidSchiWaitForSchedulerEvents+0x1fb
fffff880`04426ab0 fffff880`077d6e7a : 00000000`00000000 fffffa80`05fa9d50 00000000`00000080 fffffa80`05e5b1a0 : dxgmms1!VidSchiScheduleCommandToRun+0x1da
fffff880`04426bc0 fffff800`0356fe6a : 00000000`fffffc32 fffffa80`05f85b50 fffffa80`03c469e0 fffffa80`05f85b50 : dxgmms1!VidSchiWorkerThread+0xba
fffff880`04426c00 fffff800`032c9ec6 : fffff880`037d7180 fffffa80`05f85b50 fffff880`037e1fc0 00000000`00000001 : nt!PspSystemThreadStartup+0x5a
fffff880`04426c40 00000000`00000000 : fffff880`04427000 fffff880`04421000 fffff880`0d2aed70 00000000`00000000 : nt!KxStartSystemThread+0x16


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
nvlddmkm+14a654
fffff880`119a4654 4055            push    rbp

SYMBOL_NAME:  nvlddmkm+14a654

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nvlddmkm

IMAGE_NAME:  nvlddmkm.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  502297bb

FAILURE_BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

Followup: MachineOwner
---------

0: kd> !analyze -v
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*                                                                             *
*                        Bugcheck Analysis                                    *
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VIDEO_TDR_FAILURE (116)
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa8005de64e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff880119a4654, The pointer into responsible device driver module (e.g. owner tag).
Arg3: 0000000000000000, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 0000000000000002, Optional internal context dependent data.

Debugging Details:
------------------


FAULTING_IP: 
nvlddmkm+14a654
fffff880`119a4654 4055            push    rbp

DEFAULT_BUCKET_ID:  GRAPHICS_DRIVER_TDR_FAULT

BUGCHECK_STR:  0x116

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`04426888 fffff880`07708000 : 00000000`00000116 fffffa80`05de64e0 fffff880`119a4654 00000000`00000000 : nt!KeBugCheckEx
fffff880`04426890 fffff880`07707d0a : fffff880`119a4654 fffffa80`05de64e0 fffffa80`05fadc00 fffffa80`05e5b1a0 : dxgkrnl!TdrBugcheckOnTimeout+0xec
fffff880`044268d0 fffff880`077aef07 : fffffa80`05de64e0 00000000`00000000 fffffa80`05fadc00 fffffa80`05e5b1a0 : dxgkrnl!TdrIsRecoveryRequired+0x1a2
fffff880`04426900 fffff880`077d8b75 : 00000000`ffffffff 00000000`0006cdde 00000000`00000000 00000000`00000002 : dxgmms1!VidSchiReportHwHang+0x40b
fffff880`044269e0 fffff880`077d72bb : 00000000`00000102 00000000`00000000 00000000`0006cdde 00000000`00000000 : dxgmms1!VidSchiCheckHwProgress+0x71
fffff880`04426a10 fffff880`077aa2c6 : ffffffff`ff676980 fffffa80`05e5b1a0 00000000`00000000 00000000`00000000 : dxgmms1!VidSchiWaitForSchedulerEvents+0x1fb
fffff880`04426ab0 fffff880`077d6e7a : 00000000`00000000 fffffa80`05fa9d50 00000000`00000080 fffffa80`05e5b1a0 : dxgmms1!VidSchiScheduleCommandToRun+0x1da
fffff880`04426bc0 fffff800`0356fe6a : 00000000`fffffc32 fffffa80`05f85b50 fffffa80`03c469e0 fffffa80`05f85b50 : dxgmms1!VidSchiWorkerThread+0xba
fffff880`04426c00 fffff800`032c9ec6 : fffff880`037d7180 fffffa80`05f85b50 fffff880`037e1fc0 00000000`00000001 : nt!PspSystemThreadStartup+0x5a
fffff880`04426c40 00000000`00000000 : fffff880`04427000 fffff880`04421000 fffff880`0d2aed70 00000000`00000000 : nt!KxStartSystemThread+0x16


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
nvlddmkm+14a654
fffff880`119a4654 4055            push    rbp

SYMBOL_NAME:  nvlddmkm+14a654

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nvlddmkm

IMAGE_NAME:  nvlddmkm.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  502297bb

FAILURE_BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

Followup: MachineOwner
---------

0: kd> lmvm nvlddmkm
start             end                 module name
fffff880`1185a000 fffff880`1253f000   nvlddmkm T (no symbols)           
    Loaded symbol image file: nvlddmkm.sys
    Image path: nvlddmkm.sys
    Image name: nvlddmkm.sys
    Timestamp:        Wed Aug 08 22:45:47 2012 (502297BB)
    CheckSum:         00CC797E
    ImageSize:        00CE5000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Go through the link below:
STOP 0x116: VIDEO_TDR_ERROR troubleshooting