PC qui reboot tout seul

Bonjour,
J'ai mon pc qui reboot tout seul de temps en temps, meme quand je ne m'en sert pas !!!

d'apres windows, le probleme s'appelle "bluescreen", mais bon, je n'ai jamais eu d'écran bleu avant qu'il reboot !

Bref, j'ai fait un rapport de crash avec Whocrashed que je met dessous :

On Wed 28/03/2012 14:46:03 GMT your computer crashed
crash dump file: C:\Windows\Minidump\032812-53149-01.dmp
This was probably caused by the following module: ntkrnlpa.exe (nt+0x4686B)
Bugcheck code: 0xA (0x0, 0x2, 0x0, 0xFFFFFFFF836BE0D5)
Error: IRQL_NOT_LESS_OR_EQUAL
file path: C:\Windows\system32\ntkrnlpa.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
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 which cannot be identified at this time.


On Wed 28/03/2012 14:46:03 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrpamp.exe (nt!Kei386EoiHelper+0x29D3)
Bugcheck code: 0xA (0x0, 0x2, 0x0, 0xFFFFFFFF836BE0D5)
Error: IRQL_NOT_LESS_OR_EQUAL
Bug check description: This indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
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: ntkrpamp.exe .
Google query: ntkrpamp.exe IRQL_NOT_LESS_OR_EQUAL


Voila, si quelqu'un peut m'aider a comprendre ce rapport, merci.