7 Replies Latest reply on Nov 6, 2010 9:55 AM by vegan

    Celeron 335

    vegan

      I have an Acer Aspire T320 that I am using for my web sppliance. It seems that the CPU power states are not working as well as I would like.

       

      I am using Ubuntu Linux and cpufrequtils does not like the machine and fails on boot, likely due to the kernel not being compiled properly for it.

       

      Intel has a technology called Speed Step so I was wondering if C1 (50% clock) will still come up given no OS ACPI support for the hardware.

        • 1. Re: Celeron 335
          mechbob

          Is this a notebook we are talking about??

          • 2. Re: Celeron 335
            vegan

            No its a tower machine. Celeron 335 socket 478 etc.

            • 3. Re: Celeron 335
              mechbob

              478 socket we are talking about a old machine . If you look on ebay you can find CPUs for the 478 up to 3.6 for next to nothing. and cheap ram so you could up grade both . for not alot of $$$

              • 4. Re: Celeron 335
                vegan

                I know its an old machine but I was juts wanting to find the best software to allow the CPU to doze etc when the load is low.

                 

                C0 is most active state

                C1 is 50%

                Cx slower

                 

                I found a tool called PowerTop that Intel developed and that tool tells me the CPU is sweeping in load but its not showing C states as the kernel lacks an option that I have inquired about with my distribution as well as with the kernel crowd.

                 

                I might get a new board for the machine next year depending on how much I make.

                 

                I recently got my Microsoft MVP so I am now looking for better paid work.

                • 5. Re: Celeron 335
                  vegan

                  Another issue that I have found is tha t Intel's PowerTop tool, while good, as for a kernel feature that is still not available.

                   

                  I wonder if using ACPI and so on might be a better angle?

                  • 6. Re: Celeron 335
                    mechbob

                    Man if you can find a good price on a P4 extreme 478, that would be the way to go , the # is SL7CH , 3.4, 2MB L3 , I've got one of these in a old HP with 4 GB and it Fly's.

                    • 7. Re: Celeron 335
                      vegan

                      If I go that route, I have another motherboard that needs an AMD CPU. That or I can find a different MB and CPU and go from there.

                       

                      The machine has a better PSU that the original crappy one Acer originally supplied.

                       

                      Locally a Celeron for LGA775 is chump change, and a MB is also peanuts.

                       

                      The new models of Celeron are down to 35W but I am hoping for even less.

                       

                      A low power server means lower operating costs and increased productivity.

                       

                      My BIOS on the current MB doe not support a faster CPU, so best I can use a Pentium 2.8E but I am not interested in that processor.

                       

                      I am more wondering if Intel can do more with PowerTop and CPUfreqUtil to manage their processor power consumption.

                       

                      At present CPUfreqUitl does not like any machine I have. So it needs to be fixed.

                       

                      I am OK with C++ but this would be a hard project indeed.