Date: Thu, 30 Dec 2004 16:37:20 -0800 From: "David O'Brien" <obrien@freebsd.org> To: "Michael W. Oliver" <michael@gargantuan.com> Cc: freebsd-amd64@freebsd.org Subject: Re: CPU speed not reported correctly Message-ID: <20041231003720.GA29434@dragon.nuxi.com> In-Reply-To: <20041230140022.GC59271@gargantuan.com> References: <20041229212555.GD89526@gargantuan.com> <20041230005738.GD68336@dragon.nuxi.com> <20041230140022.GC59271@gargantuan.com>
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On Thu, Dec 30, 2004 at 09:00:22AM -0500, Michael W. Oliver wrote: > On 2004-12-29T16:57:38-0800, David O'Brien wrote: > > On Wed, Dec 29, 2004 at 04:25:55PM -0500, Michael W. Oliver wrote: > > > CPU: AMD Athlon(tm) 64 Processor 3400+ (801.83-MHz K8-class CPU) > > . > > > OK, here is my question: Why is the CPU speed reported as 801.83MHz? > > > Is there something really wrong with my setup here? I have this machine > > > configured to dual boot with the other OS being the x64 version of XP, > > > and it reports a 2.2GHz CPU (for what it's worth...). > > > You've some how gotten your Athlon64 processor in Cool-n-Quiet (ie, > > PowerNOW) cool, low-power mode. If you do a cold boot into FreeBSD, what > > CPU speed is reported? By chance is this a laptop and not a desktop. > > Thanks for the reply David. > > When booting cold, the same speed is reported -- 801.83-MHz. Yes, this > is a laptop (Sager 4750-V). This is normal behavior for many laptops then -- they start up in low-power mode. I've been waiting for the FreeBSD power-freqency control framework to hit the tree before adding AMD64 Cool-n-Quiet support. -- -- David (obrien@FreeBSD.org)
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