ACPI BIOS error causing continual terminal system hang.

[Gordy]

Hi was hoping someone could assist. The below error has
kept on occuring on my Acer 514T notebook computer since i
bought it (2nd hand).
Im pretty sure this is the cause of my notebook completely
locking up on me. Can anyone please suggest a way of
fixing this. No matter what program i use, nearly every 20-
60 mins after booting the machine it completely hangs. No
blue screen or anything comes up. It forces me to have to
hard boot the machine. Scandisk doesn't detect any
problems on the harddisk (bat sectors etc).

AMLI: ACPI BIOS is attempting to write to an illegal IO
port address (0x70), which lies in the 0x70 - 0x71
protected address range. This could lead to system
instability. Please contact your system vendor for
technical assistance.

 

[larry]

check out :

http://support.microsoft.com/default.aspx?
scid=http://support.microsoft.com:80/support/kb/articles/q
283/6/49.asp&NoWebContent=1

 

[Guest]

Thanks for the reply.
Unfortunatley even a new reflash of the BIOS made no
change to the problem. Situation has worsened in that the
machine no locks-up evry 10mins now instead. I'm concerned
the processor is fried on this thing. Anyone recomend a
good program or method to see if this is true?

 

[Rick Byers [MSFT]]

I was just having this problem as well. Acer just told me WinXP wasn't
supported by this laptop. I think there must be something else going on in
addition to the unsafe BIOS I/O requests, because Win2K presumably works
fine and Win2K is supposed to do the exact same thing as WinXP with blocking
unsafe BIOS I/O requests - it just doesn't generate the event log message.

However, figuring this was still probably due to BIOS bugs in the
implementation of ACPI, I tried reinstalling using the "Standard PC HAL"
(instead of the ACPI HAL which is the default for this machine) and now it's
running beautifully! You can force the standard HAL during install by
pressing F7 when you are prompted to install storage drivers (it doesn't
give any indication that F7 did anything - see
http://support.microsoft.com/default.aspx?scid=kb;en-us;314830). You can
also pick a specific HAL during install from a list by using F5 (see the
instructions here:
http://support.microsoft.com/default.aspx?scid=kb;en-us;299340).

After I did the re-install, I also found this:
http://support.microsoft.com/default.aspx?scid=kb;en-us;309283. Following
those instructions, it appears to be possible to switch from the ACPI to the
Standard HAL without reinstalling, but I didn't try it.

I hope this helps,
Rick