ACPI enable or disable

pjsb01 · Nov 11, 2003, 11:43 AM

Hi,

i have a brand new laptop, fujitsu-siemens amilo with a athlon.
schould i disable win2k's acpi?
what are the reasons? what are the (dis)advantages?

thanks

please help

The_Neon_Cowboy · Nov 11, 2003, 04:25 PM

just thought Id mention ....I'd leave that setting alone if I were you..

RIV@NVX · Nov 11, 2003, 04:30 PM

If there are no problems with it, don't touch it

Dyre Straits · Nov 11, 2003, 04:41 PM

As the others have said, don't change it now. The reason? Doing so may result (and usually does) in having to reinstall the OS....maybe even a full reformat.

"Resolution: If ACPI appears to be causing a problem with an ES/PCI card, there are two ways of solving the problem:

The easiest way: would be to disable APCI in the PC’s BIOS.

The other way: If ACPI is not a configurable item in your BIOS and you have Windows 2000, then you can disable ACPI by reinstalling Windows 2000. This is not a difficult procedure either, but it requires re-installing Windows 2000 from scratch, and reinstalling all of your software back on the PC."

Taken from here.

calinb · Nov 12, 2003, 01:33 AM

Laptops are where ACPI really makes sense (power management). Also, if your laptop has XP, ACPI doesn't really pose problems, in most cases. Win2K is sometimes a different story. If you choose to disable ACPI and enable Standard PC HAL, expect to reinstall all your drivers. (Been there, done that.) It's probably easier to "nuke and repave," but it can be done.

This page from the ST Audio website contains both useful information and links to other pages with more information. It contains a table of popular PCs paired with which HAL works best.

http://www.staudio.de/kb/english/2000xp/index.html

Here's the method I used on a Win2K HTPC:

http://service.steinberg.net/knowled...io_performance

Methods for a new OS install are also discussed.

Good Luck!

surealsurrender · Nov 12, 2003, 07:39 AM

Hi there... Just thought I would throw in my 2 cents.

At one point I decided I would try and turn ACPI off just because there are so many proponents of doing so. I did it with a full reinstall of windows XP. All I can say is on my system turning off ACPI did not improve performance at all, instead it made it horribly unstable and slow. I reinstalled XP 2 days later with ACPI and it back to running great. I changed for no other reason then to check if my system would be any better then it was... which was perfectly stable with nice low latency audio thanks to kxproject. So if your system is running well now, you should probably leave it alone...

Good Luck
Sur

My System...
AMD XP1900
ECS K7s5a - Modified AMI BIOS APIC enabled
512Mb Ram
SB0090 with Livedrive

calinb · Nov 29, 2003, 09:31 AM

Ref: links in my post above. In general, ACPI is recommended in XP, but NOT recommended in Win2K. Mileage may vary

Haribo · Nov 29, 2003, 05:35 PM

ACPI is GOOD not bad, just so everyone knows

Seems as if though many people think it's something bad that they need to turn off.

The only time you should run without ACPI is if you have some card that cannot handle virtual IRQ's (ACPI).

~~craig588~~ · Nov 29, 2003, 05:53 PM

ACPI also hurts overclocking.

Haribo · Nov 29, 2003, 06:02 PM

Quote:

Originally posted by craig588
ACPI also hurts overclocking.

Since when?

Got any source confirming this?

Dyre Straits · Nov 29, 2003, 06:20 PM

Quote:

Originally posted by craig588
ACPI also hurts overclocking.

I'd also be interested in further info on this.

~~craig588~~ · Feb 1, 2004, 11:10 PM

whups, I read wrong. Its APIC that hurts overclocking. Disregard my comment.

RIV@NVX · Feb 2, 2004, 04:30 PM

Quote:

Originally posted by craig588
whups, I read wrong. Its APIC that hurts overclocking. Disregard my comment.

Where did you read it? How much does it hurt it?

Nov 11, 2003, 11:43 AM	#1
pjsb01 DriverHeaven Junior Member Join Date: Dec 2002 Posts: 21 Rep Power: 0	ACPI enable or disable Hi, i have a brand new laptop, fujitsu-siemens amilo with a athlon. schould i disable win2k's acpi? what are the reasons? what are the (dis)advantages? thanks please help

Nov 11, 2003, 04:25 PM	#2
The_Neon_Cowboy HardwareHeaven Extreme Member Join Date: Dec 2002 Location: U.S.A. Posts: 16,009 Rep Power: 92 System Specs	just thought Id mention ....I'd leave that setting alone if I were you.. __________________

Nov 11, 2003, 04:30 PM	#3
RIV@NVX Freedom is a feature. Join Date: Jul 2002 Location: Croatia, Rijeka Posts: 4,476 Rep Power: 0 System Specs	If there are no problems with it, don't touch it __________________ -- Vedran

Nov 12, 2003, 01:33 AM	#5
calinb DriverHeaven Junior Member Join Date: Jul 2003 Location: Portland, OR USA Posts: 74 Rep Power: 0	ACPI Laptops are where ACPI really makes sense (power management). Also, if your laptop has XP, ACPI doesn't really pose problems, in most cases. Win2K is sometimes a different story. If you choose to disable ACPI and enable Standard PC HAL, expect to reinstall all your drivers. (Been there, done that.) It's probably easier to "nuke and repave," but it can be done. This page from the ST Audio website contains both useful information and links to other pages with more information. It contains a table of popular PCs paired with which HAL works best. http://www.staudio.de/kb/english/2000xp/index.html Here's the method I used on a Win2K HTPC: http://service.steinberg.net/knowled...io_performance Methods for a new OS install are also discussed. Good Luck! Last edited by calinb; Nov 12, 2003 at 01:51 AM.

Nov 12, 2003, 07:39 AM	#6
surealsurrender DriverHeaven Newbie Join Date: Dec 2002 Location: Ottawa, Ontario, Canada Posts: 19 Rep Power: 0	ACPI Hi there... Just thought I would throw in my 2 cents. At one point I decided I would try and turn ACPI off just because there are so many proponents of doing so. I did it with a full reinstall of windows XP. All I can say is on my system turning off ACPI did not improve performance at all, instead it made it horribly unstable and slow. I reinstalled XP 2 days later with ACPI and it back to running great. I changed for no other reason then to check if my system would be any better then it was... which was perfectly stable with nice low latency audio thanks to kxproject. So if your system is running well now, you should probably leave it alone... Good Luck Sur My System... AMD XP1900 ECS K7s5a - Modified AMI BIOS APIC enabled 512Mb Ram SB0090 with Livedrive

Nov 29, 2003, 09:31 AM	#7
calinb DriverHeaven Junior Member Join Date: Jul 2003 Location: Portland, OR USA Posts: 74 Rep Power: 0	XP and ACPI Ref: links in my post above. In general, ACPI is recommended in XP, but NOT recommended in Win2K. Mileage may vary

Nov 29, 2003, 05:35 PM	#8
Haribo DriverHeaven Newbie Join Date: Oct 2003 Posts: 8 Rep Power: 0	ACPI is GOOD not bad, just so everyone knows Seems as if though many people think it's something bad that they need to turn off. The only time you should run without ACPI is if you have some card that cannot handle virtual IRQ's (ACPI).

Nov 29, 2003, 05:53 PM	#9
~~craig588~~ Banned Join Date: Nov 2002 Location: In clothing Posts: 3,510 Rep Power: 0	ACPI also hurts overclocking.

Feb 1, 2004, 11:10 PM	#12
~~craig588~~ Banned Join Date: Nov 2002 Location: In clothing Posts: 3,510 Rep Power: 0	whups, I read wrong. Its APIC that hurts overclocking. Disregard my comment.