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rs780g powerplay catalyst 9.1 fedora 10 - problem

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  • #16
    I'm not aware of any CPU-specific powerplay differences, but the fact that Turions tend to be in notebooks and Athlons tend to be in desktops might be the point (ie it's not the CPU, it's the system).

    Powerplay was a laptop-only feature for many years but we have started using it in desktop systems over the last couple of years as well. I wouldn't be surprised if a notebook application of the 780 had a more aggressive PowerPlay implementation than a desktop application.

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    • #17
      powerplay no powerplay

      ok, as far as i know the processor family for the puma platform is the same for current mobile athlon and turion processors (10h or 11h isn't it?). I mean the socket s1 ql, rm, zm lines. The differences mentioned on the amd site are mainly the bus frequencies, power states, and cache size. so i believe the processor package is the same as well. It does not mention any influence on the powerplay features of the chipset. I have previously had a hp laptop with mobility x600 card. i have first had a celeron processor in it and after that exchanged for a pentium. The powerplay feature worked in both cases identically, and saved a lot of power. So for me the current issue either seems like a bug (which hopefully will be fixed) or a deliberate crippling of the chipset features depending on the processor version.
      The same athlon/turion processors are put in laptops with nvidia 8200 chipset which I wish i bought instead of this one - vdpau working mainly...
      What is more the athlon QL-60 and turion rm-70 and even the zm-84 share the same B1 core revision (as found on the www.cpu-world.com)
      Anyone has a turion processor for sale?

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      • #18
        ok, another guy from HP support has answered:
        "I got some research done into this and have found that the feature is purely video card based and the feature should be available on your unit."

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        • #19
          powerplay

          Hooray!
          I hope they'll fix it soon... (another BIOS revision?)

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          • #20
            Another answer from AMD support:
            "PowerPlay isn't CPU specific as the last technician told you. I think HP made a mistake when they told you that information. PowerPlay is supported with that chip, but HP could have just not included the power play option on that model of laptop."

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            • #21
              "PowerPlay is supported with that chip, but HP could have just not included the power play option on that model of laptop."
              Is I understand this, PowerPlay should actually be possible on all RS780 Chips, but has to be enabled in the BIOS? What is exactly this "power play option"? I hope also for a new BIOS, but actually I don't think the vendors will roll out a new BIOS with support for that. I have hopes in the coreboot project, to which AMD is contributing also at the moment (Thanks for that, too, AMD!).
              www.coreboot.org

              Still not sure, if this could be fixed with a new BIOS theoretically.

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              • #22
                In my opinion, PowerPlay feature depends mainly on bios - but it's a bug (thanks to HP) that it works only with AMD Turion processors.

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