From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Re: Mobile Celeron Date: Tue, 13 Mar 2007 15:01:21 -0400 Message-ID: <20070313190121.GD27471@redhat.com> References: <50df9eb80703121320k182b0aa9x8fd7c6c7969384d7@mail.gmail.com> <20070313013801.GA5364@tatooine.rebelbase.local> <50df9eb80703131114wcff0a56g1d93499531eee9a@mail.gmail.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <50df9eb80703131114wcff0a56g1d93499531eee9a@mail.gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Ralf Meyer Cc: cpufreq@lists.linux.org.uk On Tue, Mar 13, 2007 at 07:14:16PM +0100, Ralf Meyer wrote: > On 3/13/07, markus reichelt wrote: > > * Ralf Meyer wrote: > > > > > is a Mobile Celeron supposed to be able to do CPU frequency > > > scaling? > > > > run cpuid and check for something like Enhanced Intel SpeedStep > > Technology > > > > cpuid @ http://www.etallen.com/cpuid.html > > Thanks. I didn't know this tool. > > $ cpuid | grep -i speed # gave me: > --- > Enhanced Intel SpeedStep Technology = false > --- > > Its man page led me to the Datasheet (29851706.pdf). In the Power > Management chapter there is no mention of speedstep or enhanced > speedstep but something called Quickstart. I never heard about this > before. > > Does Quickstart work all by itself? iirc, quickstart is just a c-state, that (providing your BIOS has an ACPI implementation that works) should 'just work'. > My original question should have been clearer in that I wanted to know > if the hardware is capable of frequency scaling of some sort. I don't recall any celerons having frequency scaling. Dave -- http://www.codemonkey.org.uk