Plantages à répétition...

Bonjour.
Voila depuis lundi j'ai un gros soucis : j'ai mon ordi qui plante méchamment et de manière apparemment aléatoire. Je veux dire par là que c'est pas toujours en faisant la même chose : c'est arrivé pendant que je regardais une série en streaming, en jouant à un jeu, en mettant l'ordi en veille ou tout simplement au moment de l'éteindre. A chaque fois c'est la même chose : un écran bleu avec plein de blabla en anglais, et l'ordi redémarre. D'ailleurs, souvent il re-plante plusieurs fois de suite en redémarrant au moment de lancer windows...

J'ai déja emmené la machine chez un réparateur, il a formaté, fait des test sur la RAM, la CG etc... mais ça plante toujours. J'ai essayé de virer certains programmes qui avaient eu une mise à jour récente, ça ne change rien.

Niveau config, je suis sous windows 7 64 bits. J'ai changé mon processeur y'a pas longtemps (jeudi de la semaine dernière) mais je n'ai eu des plantages que le lundi (alors que en général j'ai l'ordi qui tourne toute la journée, j'ai pas eut de soucis pendant 3 jours...).

J'ai vérifié mes pilotes, tout est à jour, sauf le pilote de la carte graph intégrée (que j'utilise pas) et celui de la souris...

J'ai fait un test avec Whocrashed, ça m'a donné le résultat suivant :

On Sat 11/08/2012 08:47:23 GMT your computer crashed
crash dump file: C:\Windows\Minidump\081112-26894-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7F1C0)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80002EE6F34, 0xFFFFF880074121A0, 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 which cannot be identified at this time.


On Fri 10/08/2012 18:41:29 GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: Unknown (0xFFFFF88003E84D25)
Bugcheck code: 0xD1 (0xF0, 0x2, 0x0, 0xFFFFF88001482046)
Error: DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug check description: This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high.
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: Unknown .
Google query: Unknown DRIVER_IRQL_NOT_LESS_OR_EQUAL




On Fri 10/08/2012 14:38:15 GMT your computer crashed
crash dump file: C:\Windows\Minidump\081012-29608-01.dmp
This was probably caused by the following module: classpnp.sys (CLASSPNP+0x5675)
Bugcheck code: 0xD1 (0x3, 0x2, 0x1, 0xFFFFF88001981675)
Error: DRIVER_IRQL_NOT_LESS_OR_EQUAL
file path: C:\Windows\system32\drivers\classpnp.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: SCSI Class System Dll
Bug check description: This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high.
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 which cannot be identified at this time.


On Thu 09/08/2012 08:53:49 GMT your computer crashed
crash dump file: C:\Windows\Minidump\080912-52244-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7F1C0)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF80002AD300F, 0x0, 0x0)
Error: KMODE_EXCEPTION_NOT_HANDLED
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 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.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.


Bref je sais plus quoi faire. Si quelqu'un a une idée de l'origine du problème, j'en serai très reconnaissant. Merci d'avance.