ACPI Error

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?

thanks

MBP 2.4,2.53 c2d (late 2008), Windows XP

Posted on Mar 6, 2009 3:22 AM

Reply
9 replies

Mar 6, 2009 6:20 AM in response to Fortuny

Hi,
thanks for the reply. I am using the drivers supplied in the dvds come with macbook pro. it is bootcamp drivers 2.1 only. i used apple software update and it updated the MTTP drivers.

it seems to be the generic problem happening with windows xp, vista and windows 7 too.

Are you getting this kind of error messages in your event log.
thanks

Mar 6, 2009 6:39 AM in response to Fortuny

yes...i treid reinstalling the drivers and even reinstalled windows xp/vista7/windows 7 more than 4 times...it is the same...as you are saying this is not happning with the black mac book it is happening in the unibody macbook pros..it seems to be that some people are facing the problem...but not able to find more information regarding this.

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ACPI Error

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