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flashing 6870 frequency change give bsod and fan control NOT WORK

Discussion in 'AMD / ATI' started by dono89, Jun 19, 2011.

  1. dono89 New Member

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    hi guys, i have a 6870 on windows 7 sp1 with driver 11.6

    Every time that i flash my 6870 with another fan curve, it work only before loading windows.
    When it charge the driver the fan return to 22% on idle....and only 32% when gpu is 85°C

    i must increase the fan, but if i do that with rbe and flash, it don't work on windows:cry:

    have you a solution???
    change/modify file
    change/modify regedit key....everything.....

    best regards, Diego.
    sorry for my bad english, i'm italian :)
  2. MasterTB New Member

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    There is no solution. The Catalyst drivers are the problem.
    I have two Sapphire 6870's which have an terrible fan profile and in order to play games I have to manually set the fans to 70% or either wise the cards will get too hot and crash.
    Not even with Sapphire's own trixx software I can set a curve for the fans without a crash.
    It is a shame that Sapphire won't fix the issue and that AMD won't let us toy with the bios.
  3. dono89 New Member

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    thanks for reply.

    but i don't like afterburner or any software, i always flashing the bios.



    i read about some 6870 that run to 100mhz for core and 150mhz for ddr5, mine, run 300mhz for core and memory :shadedshu
    how can run my card to 100mhz core and 150mhz memory??? (the bios is always for 100mhz for core)
  4. MasterTB New Member

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    I have my cards running at 940 GPU 1100 Memory and my lowest speeds are, like yours 300 on both so I wouldn't know how to lower that.
    Besides I'm on crossfire so I don't really know if that has an impact on how much low clocks can go.
  5. dono89 New Member

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    6°C less on core when the gpu is idle and less consumption for the sistem....there isn't any registry key to edit? :(

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