voila la reponse que j'ai eut du support technique asus:
According to your problem, it's only can say that your system is unstable, and you can remove all the PCI device except the PCI
audio card to see if it caused by the hardware conflict. Or you can downclock the CPU/memory to see if it caused by the high FSB.
If the system become stable when you downclock the FSB, please check the memory to see if it can run fine under 133FSB or if it
is compatible with the MB. You can try another memory(the different brand one).
Also you can updata the bios to the latest one to have a try.
Here i have sent you the latest bios and the liveupdata.
mais je ne comprend pas trop ce qu'il faut faire avec le ratio CPU/RAM, actuellement j'ai un ratio automatique.
Et j'ai flashé le bios de ma carte en 1011..