I need help overclocking my xfx 6870.

Im trying to overclock my radeon 6870.The most core clock i can get it to with msi afterburner is 920, and a memory clock of 1070, and i mean thats the clock that lets me go the longest without bf3 locking.I dont know how to change the voltage, because afterburner doesnt give me the option.Please help

asus m4a87td-evo
agi 580w psu
8gb ddr3 1600 corsair vengeance ram
phenom ii x4 960 @ 6 cores 3.4ghz
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More about overclocking 6870
  1. In Afterburner settings, you can unlock voltage changing, although be VERY careful with that, as GPUs are extremely sensitive to voltage changes.
  2. try using EVGA percision X, i got my HD 6850 to 945core no problem and i think 1100memory

    I never adjusted voltage before, cuz i hate using ASUS doctor tool thing, thjinking of upgrading anyways :P
  3. mogen1000 said:
    try using EVGA percision X, i got my HD 6850 to 945core no problem and i think 1100memory

    I never adjusted voltage before, cuz i hate using ASUS doctor tool thing, thjinking of upgrading anyways :P


    whats your psu?
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