bonjour,
de nouveau un bsod

System Information (local)
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computer name: ASUSZ77
windows version: Windows 7 Service Pack 1, 6.1, build: 7601
windows dir: C:\Windows
Hardware: ASUSTeK COMPUTER INC., SABERTOOTH Z77
CPU: GenuineIntel Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz Intel586, level: 6
8 logical processors, active mask: 255
RAM: 8531800064 total
VM: 2147352576, free: 1923989504
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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 Tue 08/04/2014 17:41:03 GMT your computer crashed
crash dump file: C:\Windows\Minidump\040814-4368-01.dmp
This was probably caused by the following module: ataport.sys (ataport+0x1E93C)
Bugcheck code: 0x7A (0xFFFFF6FC40008158, 0xFFFFFFFFC0000185, 0x16788F860, 0xFFFFF8800102B93C)
Error: KERNEL_DATA_INPAGE_ERROR
file path: C:\Windows\system32\drivers\ataport.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: ATAPI Driver Extension
Bug check description: This bug check indicates that the requested page of kernel data from the paging file could not be read into memory.
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.