Crash Dump Analysis
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Crash dump directory: C:\Windows\Minidump
 
Crash dumps are enabled on your computer.
 
 
On Wed 08/08/2012 16:09:33 GMT your computer crashed
crash dump file: C:\Windows\Minidump\080812-26910-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x87CE9)  
Bugcheck code: 0x116 (0xFFFFFA800E3364E0, 0xFFFFF8800FD73918, 0xFFFFFFFFC000009A, 0x4)
Error: VIDEO_TDR_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.  
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.  
 
 
On Wed 08/08/2012 16:09:33 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrnlmp.exe (nt!KeRemoveQueueEx+0x1839)  
Bugcheck code: 0x116 (0xFFFFFA800E3364E0, 0xFFFFF8800FD73918, 0xFFFFFFFFC000009A, 0x4)
Error: VIDEO_TDR_ERROR
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.  
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.  
 
 
On Wed 08/08/2012 12:02:59 GMT your computer crashed
crash dump file: C:\Windows\Minidump\080812-26660-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x87CE9)  
Bugcheck code: 0x116 (0xFFFFFA800A2804E0, 0xFFFFF8800FD31918, 0xFFFFFFFFC000009A, 0x4)
Error: VIDEO_TDR_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.  
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.  
 
 
On Wed 08/08/2012 11:57:37 GMT your computer crashed
crash dump file: C:\Windows\Minidump\080812-26005-01.dmp
This was probably caused by the following module: unknown_module_fffff880`014724c0.sys (Unloaded_Unknown_Module_fffff880`014724c0+0x3AB1502)  
Bugcheck code: 0x116 (0xFFFFFA800F2D23C0, 0xFFFFF8800FD86918, 0xFFFFFFFFC000009A, 0x4)
Error: VIDEO_TDR_ERROR
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.  
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: unknown_module_fffff880`014724c0.sys .  
Google query: unknown_module_fffff880`014724c0.sys VIDEO_TDR_ERROR
 
 
 
 
 
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Conclusion
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4 crash dumps have been found and analyzed. A third party driver has been identified to be causing system crashes on your computer. It is strongly suggested that you check for updates for these drivers on their company websites. Click on the links below to search with Google for updates for these drivers:  
 
unknown_module_fffff880`014724c0.sys  
 
If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the query. This often yields interesting results from discussions from users who have been experiencing similar problems.
 
 
Read the topic general suggestions for troubleshooting system crashes for more information.  
 
Note that it's not always possible to state with certainty whether a reported driver is actually responsible for crashing your system or that the root cause is in another module. Nonetheless it's suggested you look for updates for the products that these drivers belong to and regularly visit Windows update or enable automatic updates for Windows. In case a piece of malfunctioning hardware is causing trouble, a search with Google on the bug check errors together with the model name and brand of your computer may help you investigate this further.