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Title: Underclocking 6990s 100mhz past core clock. Is it possible with stock bios? Post by: CrazyGuy on August 28, 2011, 07:07:54 PM I'm using linuxcoin and I've tried atitweak,aticonfig, and AMDOverdriveCTRL. All tools will show me that they have set the memory clock to whatever I want, but once I put load on the card, mem clocks shoot up to 1250(If the mem clock is over 100mhz below core clock). After doing some research it looks like quite a few people have run into this issue. Has anyone gotten past this issue without flashing the bios?
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