From mboxrd@z Thu Jan 1 00:00:00 1970 From: Niels Borne Subject: Re: hardware limits Date: Sat, 03 Jun 2006 16:47:16 +0200 Message-ID: <4481A0F4.5090702@laposte.net> References: <44795327.5000809@laposte.net> <20060529144727.GA10393@dominikbrodowski.de> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20060529144727.GA10393@dominikbrodowski.de> 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="iso-8859-1"; format="flowed" To: Dominik Brodowski Cc: cpufreq@lists.linux.org.uk Hi, Thanks for your answer. More questions below : Dominik Brodowski a =E9crit : > Hi, >=20 > On Sun, May 28, 2006 at 09:37:11AM +0200, Niels Borne wrote: >> I am working on a vaio laptop pcg-fr415b, using fc5 (see result of cat=20 >> /proc/cpuinfo above). >> Since it is quite noisy I allowed cpuspeed at startup and this improved = >> the situation a little bit. >> Still cpufreq-info (see details above -in french, but you can guess) giv= es >> hardware limits : 2.10 GHz - 2.80 GHz >> Is there any hope to go below 2.10 GHz and if yes, how ? >=20 > Unfortunately no -- there's a bug in the hardware which causes problems if > the frequency is lower than 2 GHz.=20 Which hardware exactly ? It this related to the N60 errata ? Also, p4-clockmod doesn't save you all > that much (if at all)=20 well it seems to improve somewhat as it doesn't do CPU frequency and voltage scaling, what do you mean ? my frequency is now most often 2.10 GHz, and was 2.80=20 GHz, so it does CPU frequency, doesn't it ? so you shouldn't worry too much about this... >=20 > Dominik Niels