BSOD playing GMOD, atikmpag.sys (0xFFFFF8800420CF38).

i got this infomation of whocrashed:
System Information (local)
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Computer name: OEM-PC
Windows version: Windows 7 Service Pack 1, 6.1, build: 7601
Windows dir: C:\Windows
Hardware: OptiPlex 760 , Dell Inc., 0M858N
CPU: GenuineIntel Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz Intel586, level: 6
4 logical processors, active mask: 15
RAM: 8453210112 bytes total




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Crash Dump Analysis
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Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Sun 03/04/2016 14:05:28 GMT your computer crashed
crash dump file: C:\Windows\Minidump\040316-29624-01.dmp
This was probably caused by the following module: atikmpag.sys (atikmpag+0xCF38)
Bugcheck code: 0x116 (0xFFFFFA800DDE4180, 0xFFFFF8800420CF38, 0x0, 0x2)
Error: VIDEO_TDR_ERROR
file path: C:\Windows\system32\drivers\atikmpag.sys
product: AMD driver
company: Advanced Micro Devices, Inc.
description: AMD multi-vendor Miniport Driver
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: atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.).
Google query: Advanced Micro Devices, Inc. VIDEO_TDR_ERROR



On Sun 03/04/2016 14:05:28 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: atikmpag.sys (0xFFFFF8800420CF38)
Bugcheck code: 0x116 (0xFFFFFA800DDE4180, 0xFFFFF8800420CF38, 0x0, 0x2)
Error: VIDEO_TDR_ERROR
file path: C:\Windows\system32\drivers\atikmpag.sys
product: AMD driver
company: Advanced Micro Devices, Inc.
description: AMD multi-vendor Miniport Driver
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: atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.).
Google query: Advanced Micro Devices, Inc. VIDEO_TDR_ERROR





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Conclusion
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2 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:

atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.)

If no updates for these drivers are available, try searching with Google on the names of these drivers in combination with the errors that have been reported for these drivers. Include the brand and model name of your computer as well in the query. This often yields interesting results from discussions on the web by 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 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.

So i play GMOD for 2-3hrs THEN i get blue chequered squares all down my screen then i go to the BSOD and restart!Sometimes the Blue chequered thing happens straght after i restart.And its not just games, it could be when im typing this!Thank you for reading!