> >>> [ 0.000000] ACPI Error: A valid RSDP was not found Are there any BIOS SETUP options for enabling/disabling ACPI? Does any other version of Linux, or any other OS find ACPI support? does "acpidump" run as root output anything? I couldn't follow your link to the BIOS manual, but if there are some docs on this system that could tell us what the hardware is and if it is supposed to suport ACPI or not, that would be a clue. thanks, -Len Brown, Intel Open Source Technology Center