ACPI Error

Discussion in 'MacBook Pro' started by rbmanian75, Mar 6, 2009.

  1. rbmanian75 macrumors member

    Mar 6, 2009
    After installing bootcamp windows xp sp2

    In the Windows event log it shows:

    Error (Source: acpi, Event: 10, time: 9:03:53)
    ACPI: ACPI BIOS is attempting to write to an illegal PCI Operation Region (0x41c), Please contact your system vendor for technical assistance.

    Error (Source: acpiec, Event: 1, time: 9:04:09)
    \Device\ACPIEC: The embedded controller (EC) hardware didn't respond within the timeout period. This may indicate an error in the EC hardware or firmware, or possibly a poorly designed BIOS which accesses the EC in an unsafe manner. The EC driver will retry the failed transaction if possible.

    i tried this in 3 new late 2008 macbook pro 2.4 and 2.53 version...its happening in all the three machines.

    whenever i start up windows it starts up with that error messages in the event logs.

    I think it is a general problem in the new late 2008 unibody MBPs...

    Is there any solution for this?

    Note :

    I tried calling apple support and they told it is microsoft issue. but in microsoft site they clearly say that is a hardware issue.

    Does all the unibody mbp models have this problem . this is happening is windows xp /vista/windows 7 . Please check the event viewer in control panel->Adminstrative tools -> event viewer System and if you see the problem please report back in the forum. so that everyone knows it a generic problem in the new models...

  2. foeken macrumors newbie

    Mar 11, 2009
    Same here, exact same errors (ACPI) every time I play any kind of 3d game. This sucks....

    Also MBP uni 2.4

Share This Page