in the mean time, it looks like the nvidia drivers seem to be the culprit
Crash Dump Analysis
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Crash dump directory: C:\Windows\Minidump
Crash dumps are enabled on your computer.
On Tue 2/26/2013 6:24:00 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022613-10030-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF939521C0, 0xFFFFFFFF965E26A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Tue 2/26/2013 6:24:00 PM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm!nvDumpConfig+0x22AB04)
Bugcheck code: 0x8E (0xFFFFFFFFC0000005, 0xFFFFFFFF939521C0, 0xFFFFFFFF965E26A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This bug check indicates that a kernel-mode application generated an exception that the error handler did not catch.
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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED
On Mon 2/25/2013 8:49:59 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022513-14414-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF8DD501C0, 0xFFFFFFFF9DD026A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Mon 2/25/2013 1:57:19 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022513-12417-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF93F541C0, 0xFFFFFFFF9F4C26A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Sun 2/24/2013 5:12:23 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-13447-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF8E7541C0, 0xFFFFFFFF954EE6A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Sun 2/24/2013 1:36:36 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-15085-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF8DB351C0, 0xFFFFFFFF904026A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Sun 2/24/2013 1:05:47 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022313-1207572-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x7241C0)
Bugcheck code: 0x1000008E (0xFFFFFFFFC0000005, 0xFFFFFFFF915491C0, 0xFFFFFFFF951026A8, 0x0)
Error: KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 314.07
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 314.07
Bug check description: This indicates that a kernel-mode program 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: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 314.07 , NVIDIA Corporation).
Google query: NVIDIA Corporation KERNEL_MODE_EXCEPTION_NOT_HANDLED_M
On Sat 2/23/2013 12:43:57 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022313-16832-01.dmp
This was probably caused by the following module: hidclass.sys (HIDCLASS+0x31A9)
Bugcheck code: 0x9F (0x4, 0x258, 0xFFFFFFFF83C87020, 0xFFFFFFFF81D7AB24)
Error: DRIVER_POWER_STATE_FAILURE
file path: C:\Windows\system32\drivers\hidclass.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Hid Class Library
Bug check description: This bug check indicates that the driver is in an inconsistent or invalid power state.
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 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.