I own a Sapphire HD7970 OC 3GB and i'm getting random BSODs (13.11 v9.2):
Here's the WhoCrashed analysis:
"On Sun 24/11/2013 11:29:36 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\112413-22900-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x1A (0x783, 0xFFFFF88007FAF1F0, 0xFFFFF9803CB40000, 0xFFFFF8A011D4C880)
Error: MEMORY_MANAGEMENT
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 a severe memory management error occurred.
This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sun 24/11/2013 11:29:36 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x98DBF)
Bugcheck code: 0x1A (0x783, 0xFFFFF88007FAF1F0, 0xFFFFF9803CB40000, 0xFFFFF8A011D4C880)
Error: MEMORY_MANAGEMENT
file path: C:\Windows\system32\drivers\ntfs.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT File System Driver
Bug check description: This indicates that a severe memory management error occurred.
This might be a case of memory corruption. More often memory corruption happens because of software errors in buggy drivers, not because of faulty RAM modules.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
On Thu 14/11/2013 11:47:12 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\111413-20716-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x7F (0x8, 0x80050033, 0x406F8, 0xFFFFF800042BE14E)
Error: UNEXPECTED_KERNEL_MODE_TRAP
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that the Intel CPU generated a trap and the kernel failed to catch this trap.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Mon 11/11/2013 6:50:36 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\111113-22573-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF8000459F9D9, 0xFFFFF8800A5068F0, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
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 exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sun 10/11/2013 11:26:07 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\111013-23478-01.dmp
This was probably caused by the following module: atikmpag.sys (atikmpag+0x8740)
Bugcheck code: 0x1000007E (0xFFFFFFFFC0000005, 0xFFFFF880052326BE, 0xFFFFF880075C5408, 0xFFFFF880075C4C60)
Error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M
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 a system thread generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
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. SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M
Conclusion
5 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 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. "