How do I disable ACPI in Windows 98SE or in the BIOS?

[Coki]

Asus p3bf with 1006 Beta 3 bios.

Is there a way to disable ACPI in Windows 98SE or in the BIOS?

Thank You.

 

[okydoky]

I am not familiar with that board, but as a general rule of thumb, it is generally done with a jumper on some, bios on others and a switch in Windows. I can't remember the switch line though... Warning!!! It should be done on fresh installs to avoid irq and device issues... Anyone remember the switch line???

 

[fitzm]

My p3v4x did not have the option in the bios so these were the instructions I received from "Slikkster". (Sorry if the instructions are too simple, I needed it simple.) ACPI disabled and re-enabled just fine with these instructions. Good luck.

Click Start Button, then click Run, then type in "Regedit" (no quotes). You'll see the Registry looking not unlike Windows Explorer.

Click on "HKEY_LOCAL_MACHINE.
Click on "Software"
Click on "Microsoft"
Click on "Windows"
Click on "CurrentVersion"
Click on "Detect"

Now, once you've clicked on Detect, you'll see some settings in the righthand pane. You'll need to create a new entry (unless it's already there!). Here's how:

RIGHT-CLICK anywhere in the righthand pane of the Detect area.
You'll get a menu that says "NEW". Left-click on "NEW" and another submenu will appear. Left-click on "DWORD Value". It will create a new entry in the righthand pane of the Detect folder labeled "New Value #1 with a bunch of "0x000's..." on the right side of it.

Now, Right-click on the "New Value #1" entry and choose "Rename". Now you can edit the name. Make the name "ACPIOption" (no quotes!) and don't change the 0x00000... entry at all...leave it at all zeros.

So, you should have a new entry that's preceded by a blue and white icon that says:

ACPIOption 0x00000000 (0)

Remember, this is in the:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Detect

registry key area.

Now, close the registry and reboot. Go to Device Manager and look at your IRQ's. See if any say ACPI. If they do, you will have to scroll down in Device Manager to "System Devices". Click on the ACPI or Advanced Configuration and Power Interface section, and then click on Driver/Update Driver. Choose "Display a list of all the drivers", then if nothing shows up in "Show Compatible Hardware" list, click on "Show all Hardware" and choose "Plug and Play Bios (Fail Safe) and let it install that. That should get you the standard Advanced Power Management that Win98 offers if you're not using ACPI.



IF you want to re-enable ACPI, let's undo that registry setting we did awhile back.

Click Start/Run/type in "regedit" (no quotes) and click OK.
Then click on the following

1. Click on HKEY_LOCAL_MACHINE
2. Click on Software
3. Click on Microsoft
4. Click on Windows
5. Click on CurrentVersion
6. Click on Detect


So the key you want is:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Detect

Now, in a previous post, I had you create a "DWORD" string labeled "ACPIOption". It's current value should be 0x00000000 (0)

DoubleClick on the key "ACPIOption". You'll be able to change the value here. It defaults to "Hexidecimal". I want you to click on the "Decimal" circle so it puts a black dot in that circle, then change the value from "0" to "1". Then, click on OK.

After doing this, it should say:

ACPIOption 0x00000001 (1)


Now close the registry and reboot. After rebooting, go to Control Panel. Then, click Add/Remove Hardware. Let it search for BOTH Pci AND Non-PCI hardware. After that, it will tell you what hardware it found. Click on "Details". It should show you that it found the ACPI Bios. Click "Finished". It should install ACPI.

After it redetects (although it may not have to because it did it before and might have saved the registry settings it found), let Windows finish booting and then go to Device Manager and see if everything is running without conflicts.

If everything is running OK in Device Manager, you should be good to go!

 

[Coki]

Great job.

Thanks a bunch.