Win7 - Disable ACPI? Try this:

DJ Life & Community General Discussion
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Win7 - Disable ACPI? Try this:

I’ve been having audio issues with Windows 7, even after some pretty serious optimising.

Nothing really serious - but I knew I could get better performance out of my laptop.

I’ve tried a lot of different ways to get around the Win 7 ACPI issues, and I knew that ACPI was causing some serious hard page faults from using DPC Checker and LatencyMon.

As a last ditch effort, I thought I’d try removing the battery…

Bugger me if all my ACPI problems didn’t just stop! :thumbsup:

Try it - see what results you get…

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You can remove the battery. Easier just to disable ACPI Compliant Control Method Battery in the device manager.

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Doesn’t do THING IN wIN 7…

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Theoretically you could re-install with a non-ACPI HAL, but it seems like overkill considering there’s probably a far simpler solution to your issue.

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for me disabling acpi in the device manager fixed all of my dcp latency issues. odd it doesn’t do anything for you. some have recommended disabling in bios.

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IMO this is the Number 1 optimisation you can use for windows machines. using the dpc checker before and after this will make it obvious.

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Agree. Disabling battery manager was the most effective optimisation step I could take on my windows machine.

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this and not checking your facebook mid set.

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Indeed, that’s what your phone is for.

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Changing the default system font to Tahoma is pretty much THE best thing you can do.

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agree, disable the battery controller method driver, is for me also the best win7/PC latency optimisation

haven’t had to actually remove the battery,

second best the wireless driver and then nvidea gfx driver

after that using a win service disabling optimisation script from a freeware tool game…blocker.runner or something (name escapes me for the moment…)

i guess removing the battery would by default disable the control method driver, but its a pretty big risk to have your lappy switch off if you bump the cable…

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Maybe it’s a Vaio thing - but I couldn’t even disable the ACPI on my machine. And I’ve done LOTS of searching on t’interweb…

From Microsoft Answers:

On all my other laptops - disabling ACPI was the first tweak I’d perform…

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I can confirm this; things changed significantly with NT6.0 with regards to the HAL, it’s essentially an all-in-one solution which automatically detects and enables features. One of its prerequisites is, as you said, ACPI.

The thing is, I can’t imagine why having ACPI support would significantly impact your latency. In fact, I’ve had a look over on the NI forums where people seem to be going mental about this, but we’re talking about fractions of miliseconds here; I’ve quite happily got my Reloop Contours at ~5ms on Windows 8, and I haven’t even remotely TRIED to optimize anything. Plus, the distance between the speakers and your audience adds 1ms per foot anyway…

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I’m using control vinyl for scratching - so any improvement on latency is welcomed! :thumbsup:

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In that case, roll your own Windows Embedded Standard 2009 image with the bare essentials :slight_smile:

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I have to admit, mate… I don’t even know what that is! :open_mouth:

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This, been around at least since XP and solved most of my issues back in the day where there wasn’t too much documented info on the subject. Second one would be turning off wifi.

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And made a hasty exit at Win 7!

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Bastards. It was nice to keep the battery in case of a power cut.

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Have you tried smittten’s script? It makes my windows machines run smooth and it’s super easy to use. Smitten, do you have a current link handy?