your system have one HT chain c51->mcp51 BIOS enabled HT-MSI on c51, and hda ... it seems pci quirks should not be used enable HT MSI on mcp51 again... YH -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html