Comment 1 for bug 229753

Confirmed by duplicate and question 41863.

According to http://ohioloco.ubuntuforums.org/showpost.php?p=5574895&postcount=14 this could be bios problem.

> In my bios setttings, i went to "advanced->chipset configurations->pci express configurations"
> Here, i changed the "Compliance Test *" to <Disable>
>(the * indicates a Word i cant remember)

Could you test if you have this option in your bios will that help?