Date: Thu, 9 Jan 2003 20:49:20 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: questions@FreeBSD.ORG Subject: Re: FreeBSD and AMD power management Message-ID: <20030109204920.GA15135@happy-idiot-talk.infracaninophi> In-Reply-To: <200301091915.H09JFUJ16660@asarian-host.net> References: <20030108232002.G61746-100000@whitetower.gambrl01.md.comcast.net> <20030109085442.GA10394@happy-idiot-talk.infracaninophi> <200301091915.H09JFUJ16660@asarian-host.net>
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On Thu, Jan 09, 2003 at 08:15:15PM +0100, Mark wrote: > ----- Original Message ----- > From: "Matthew Seaman" <m.seaman@infracaninophile.co.uk> > To: <questions@FreeBSD.ORG> > Sent: Thursday, January 09, 2003 9:54 AM > Subject: Re: FreeBSD and AMD power management > > > > Try the ports/sysutils/fvcool port --- > > http://www.nt.phys.kyushu-u.ac.jp/shimizu/ > > > > Using it has cut the average CPU temperature on my system from > > about 70C to about 50C. > > It looked interesting; so I checked it out. Then it turns out this > power-safe mode on your AMD CPU is disabled by default for a good reason: it > makes your system unstable, and/or causes it to hang. Then cool is suddenly > not so cool anymore. :( I've never experienced any problems like that. I suspect it's probably one of those things that shows up under load. As my desktop box spends quite a lot of the time sitting pretty much idle, then fvcool does it's thing without problems. If it was a hard working server then I suspect that a) the sort of problems you mention would probably show up and b) there wouldn't be that much point running something like fvcool anyhow, as the CPU would be active much of the time anyhow. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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