Hi,
since we are having a few troubles with ACPI powering down hardware that we still need (see the thread " Preventing port power down"), we got the idea to disable ACPI altogether.
Knowledge Base article Q237556 describes how one can transform an installed ACPI-aware Win2k to “dumb” mode. In a nutshell, start Windows Setup in upgrade mode, press F5 (!) when the message “Press F6 if you need to install a third party SCSI or RAID driver” appears and select Standard PC from the list.
Has anybody had any experience with this procedure or can otherwise comment on it? Is there a better (softer) approach?
TIA
Manfred
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Hi,
As I understand it, disabling ACPI requires changing the HAL.
There is a way to do from within Windows, however.
You can go into the device manager, select the node under the “Computer”
node. That node will be called something along the lines of “Advanced
Configuration and Power Interface (ACPI) PC”. Then update the driver,
manually selecting it from a list. Pick “Standard PC”… That’s it.
----- Original Message -----
From:
To: “NT Developers Interest List”
Sent: Wednesday, October 24, 2001 11:46 AM
Subject: [ntdev] Disabling ACPI
Hi,
since we are having a few troubles with ACPI powering down hardware that we
still need (see the thread " Preventing port power down"), we got the idea
to disable ACPI altogether.
Knowledge Base article Q237556 describes how one can transform an installed
ACPI-aware Win2k to “dumb” mode. In a nutshell, start Windows Setup in
upgrade mode, press F5 (!) when the message “Press F6 if you need to install
a third party SCSI or RAID driver” appears and select Standard PC from the
list.
Has anybody had any experience with this procedure or can otherwise comment
on it? Is there a better (softer) approach?
TIA
Manfred
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Hi Danilo,
You propose to disable ACPI by changing the “Computer” driver in Device Manager to “Standard PC”.
However, MSKB Q237556 warns that “you should not attempt to change from an ACPI HAL to a standard HAL or from a standard HAL to a ACPI HAL under any circumstances” this way. They picture terrible things to happen, including shooting your grandma etc. As I understand them, they recommend this procedure only for upgrading to a multiprocessor HAL. They go on and explain the trick I mentioned (start Windows Setup in upgrade mode, press F5, select Standard PC).
Do you have already tried switching the Computer driver away from ACPI as you propose? I don’t want to kill the system in question, since it’s off site.
Manfred
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