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Date:      Thu, 26 Jul 2007 12:22:08 -0700 (PDT)
From:      youshi10@u.washington.edu
To:        "V.I.Victor" <idmc_vivr@intgdev.com>
Cc:        questions@freebsd.org
Subject:   Re: ACPI slowing CPU... or something else
Message-ID:  <Pine.LNX.4.43.0707261222080.27112@hymn03.u.washington.edu>
In-Reply-To: <W7051626979317091185470942@webmail24>

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On Thu, 26 Jul 2007, V.I.Victor wrote:

> On Thu, 26 Jul 2007, Manolis Kiagias wrote:
>
>> V.I.Victor wrote: I was wondering about the "truth-of-clockspeed."
>
>>> Perhaps the 1800-MHz only applies to CPU internal cache, etc. while
>>> the external bus-clocking is down at 500-MHz or so.  Sounds like a
>>> typical marketing ploy!
>>>
>>> About disabling the ACPI...  Can I do it *safely* via the remote-ssh
>>> connection?  Or do I need to be at the box w/ keyboard and monitor?
>>> What I've read makes it seem that the ACPI is set at boot-time.
>>>
>> If you don't mind rebooting the remote machine, add:
>>
>> hint.acpi.0.disabled="1"
>>
>> to /boot/device.hints and reboot
>
> Although I've re-booted remotely, I've never done it after a boot modification.  It's probably prudent to wait 'til the weekend to try this -- mistakes are easier to deal with!
>
> Thanks for the info.

All that rebooting remotely in this case will result in is ACPI being disabled :).. you should be able to disable ACPI from the BIOS as well, if you like.

-Garrett




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