Date: Thu, 10 Sep 2009 12:10:59 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Robert Noland <rnoland@freebsd.org> Cc: Alexander Motin <mav@freebsd.org>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Detecting CPU throttling on over temperature Message-ID: <200909101211.01534.doconnor@gsoft.com.au> In-Reply-To: <1252501703.85394.3473.camel@balrog.2hip.net> References: <1252426982.00160755.1252414203@10.7.7.3> <200909091747.19696.doconnor@gsoft.com.au> <1252501703.85394.3473.camel@balrog.2hip.net>
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--nextPart1407885.oH7L6S3sN3 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wed, 9 Sep 2009, Robert Noland wrote: > > I am pretty sure it would be throttling but I think that works by > > maintaining the frequency but stalling the CPU some percentage of > > the time. I have p4tcc loaded (in GENERIC) but it doesn't show up, > > I only get.. > > Is this a core2duo? IIRC, they generally don't go into TCC until > around 100C. I did pull the c2d cpu docs at one point trying to look > at cpufreq. If you are bored, you can grab the docs from intel and > double check. Hmm, I only managed to get it to 75C or so.. Unfortunately the remote system which was exhibiting the problem has=20 been fixed and the onsite guy doesn't have time to pull it out and=20 break it again :( The coretemp source suggests that there are 2 max junction temperatures=20 for Core2Duos - 85C & 100C. However I just realised the "faulty" system has an E2140 in it which has=20 a 65W TDP, whereas the bench system has an E7500 with a TDP of 35W - I=20 guess that could explain the difference. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1407885.oH7L6S3sN3 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBKqGc95ZPcIHs/zowRAkcXAJ4rSsodJlqgMNH7tkmYiU9hvDxS9wCgi7N7 n4EJZQsP6hoXti6TexQkwj0= =Volh -----END PGP SIGNATURE----- --nextPart1407885.oH7L6S3sN3--
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