Lowering the core @ mem on idle!

Discussion in 'Videocards - AMD Radeon' started by up2nogooduk, Sep 4, 2011.

  1. up2nogooduk

    up2nogooduk Member Guru

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    Hi guy.

    I'm running 2 x 6950's i built for someone.
    But one runs ok on idle @ 250 core/ 150 Memory clock.
    But the other card runs @ 500 core/ 1200 Memory clock, which make the higher clock run 11o/c hotter. which makes the fan run faster, which then makes it sound louder. while just browesing the net, it's becomes a pain.lol

    Is there a way it make the other card run at the same lower speed at idle?

    Thanks alot:)
     
  2. BlackZero

    BlackZero Ancient Guru

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    Turn hardware acceleration off from within the browser?
     
  3. mstcobra

    mstcobra Member Guru

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    I have been trying to figure out the same thing for ages now too. Just not with crossfire. Naturally I can lower my max clocks and my gpu downclocks at idle but the mem clock always holds the same. I have tried manually editing the values for want 1 in notepad but it had no effect.
     
  4. up2nogooduk

    up2nogooduk Member Guru

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    How do i do that mate ?
     

  5. BlackZero

    BlackZero Ancient Guru

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    [​IMG]
     
  6. up2nogooduk

    up2nogooduk Member Guru

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    Do i have to tick it back when i play games.. or will the clocks rise up when playing ?

    Thanks alot :)
     
  7. BlackZero

    BlackZero Ancient Guru

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    No need to do anything, it'll only effect the browser by not allowing it to use your gpu.
     
  8. up2nogooduk

    up2nogooduk Member Guru

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    whats this option under ? cant find it lol
     
  9. up2nogooduk

    up2nogooduk Member Guru

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    oh ok lol so will use both card once i start my games ?
     
  10. BlackZero

    BlackZero Ancient Guru

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    Yes as long as the game supports cfx and you are using AMD caps ;)
     

  11. up2nogooduk

    up2nogooduk Member Guru

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    Where do i find this menu mate?
    Thanks
     
  12. BlackZero

    BlackZero Ancient Guru

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    that menu is in firefox's options tab, there should be a similar option if you are using a different browser.
     
  13. deluxe

    deluxe Master Guru

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    How many screens you using? Mine doesn't clock to 150/250 unless I disable 1 screen.
     
  14. up2nogooduk

    up2nogooduk Member Guru

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    Hi,

    Tried this, worked, but goes back up again even if im listen to relaxing music, then just stays high..
    it's annoying really..
    Only use 1 screen.

    Thanks.
     
  15. BlackZero

    BlackZero Ancient Guru

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    If you're listening to music in youtube or other flash based interface then you need to switch off hardware acceleration in flash's settings too.

    [​IMG]
     

  16. up2nogooduk

    up2nogooduk Member Guru

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    Is there any down side to that?
    I did this thanks :) but it goes up if i play music via mplayer or via Audible Manager.
    Once i stop playing, it stays high lol ..

    Thanks...
     
  17. enoy21

    enoy21 Active Member

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    Do you have the exact same bios with both ? I noticed some of the Bios' I was looking at for the ATI 5870 held a 1200 Mem clock in several power play states, yet the GPU would come down. ( Seen through RBE just checking the various defaults on different Bios revisions )
     
  18. up2nogooduk

    up2nogooduk Member Guru

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    I can confirm what BlackZero said on both does work :)
    Thanks very much..

    The only problem now, on one card the fan speed on idles ok @ 1500rpm @40 o/c
    But the other one is @2000 rpm @42 o/c. so i can hear it little.. but gosh not like it was :) guess i have to set it manual if i want fan speed lower. but yeah works great :)
    thanks very much
    is there any down size to switching off hardware acceleration in flash?
    also is it worth replacing the paste on the GPU'S .
    My gards are MSI ATI Radeon HD 6950 OC Twin FrozR III.

    Thanks alot. :)
     
  19. Ti3Kob

    Ti3Kob Master Guru

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    @ up2nogooduk
    The downside is that CPU power will be used in place of GPU power in the apps/plugins with hardware accel disabled. Your CPU will consume much more power for the same task, with lower performances (this part shouldn't be a problem with a clocked i7 though, except on some 4K content maybe).
    About your temps, the upper card will always run hotter because of the bad airflow in CFX configs. It'll always be true in aircooling setups BTW, with little to big variations depending on the space between the cards, side fan(s) or not, good general airflow in the case or not, etc.
     
  20. up2nogooduk

    up2nogooduk Member Guru

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    What about if i was playing a blu ray movie, would there be any downside as in performance?

    Cheers :)
     

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