From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Witt Subject: Re: Desktop with DVS Date: Sun, 13 Jun 2004 19:40:48 +0200 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <40CC91A0.2030908@hasw.net> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii"; format="flowed" To: cpufreq@www.linux.org.uk biciolinux@aliceposta.it wrote: >>>> This may be off the loop. But does anyone know if there are any desktop computers with dynamic voltage scaling capacity? >> >> >>> For x86{,_64}: AFAIK there are several choices: - some x86_64 AMD [server] processors and mainboards support voltage scaling, > > > >> That is not reserved to server. Most modern UP desktops shipped with AMD64 do have what is called now 'cool'n quiet' technology, and should be supported >> by the powernow-k8 driver (you have to be sure that itt's enabled, though. >> Some northbridges do not allow this unfortunatelly, even though the processor >> is capable of that) > > > > Please, is possible to know which northbriges-motherboard are supported? > Many nForce2-based boards are using a Attansic ATXP1 chip. With this chip it's possible to dynamically change the processor voltage (Epox 8RDA serie: 1.075V - 2.2V). Other boards: Abit NF7 Aopen AK79D-400VN Chaintech CT-7NJ(S,L1) DFI Infinity NFII Ultra DFI Lanparty NFII Ultra Leadtek K7NCR-18D Shuttle AN35N Ultra Soltek 75FRN(2)-L But the nForce2-chipset doesn't support AMD mobile CPUs, so it's maybe not the best for this. Bye, Sebastian