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Overclocking 6950 unlocked CF

post #1 of 5
Thread Starter 
I want to overclock my xfx 2gb 6950 unlocked, I have 2 of these in cf. I really want 950ghz core or even 1ghz core if its possible. One thing, when i do 1.3volts, 950/1450 its unstable in heaven, is that normal? Also how can i get 1ghz if cap is 950mhz in CCC andAB?
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post #2 of 5
Pick up MSI Afterburner. You can go higher than CCC will let you. Plus you can unlock voltage to adjust it. Also, AFAIK, Unigine Heaven isn't the greatest at testing stable OCing. Pick up Furmark, to stress test. OCCT works to, but really heats up VRMs much more than Furmark which is more "Game like" stress testing.
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post #3 of 5
Thread Starter 
how do i exactly unlock the newest(nonbeta) version of afterburner? i can only go to 1.4volts.
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post #4 of 5
You cannot overclock with MSI AB with crossfire on. Two big issues. 1) Overclock does not stick to your second GPU on computer restart. 2) Powerplay does not kick in for your second GPU and it stays on 100% load on computer restart. The only way to bring it down to idle is to start and then stop a GPU intensive application such as kombustor, furmark, etc.
So, basically, you got 3 options:
1) Stick to what limits CCC offers.
2) Use an Asus bios that someone here has created. And uses Asus Smart Doctor to increase CCC limits.
3) Use RBE to edit your voltages in BIOS. Use a register hack to increase CCC limits.
4) Well, there is a fourth otion. Use register hack to increase CCC limits and just overclock to what your stock voltage will allow.
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post #5 of 5
Quote:
Originally Posted by Awaz View Post
You cannot overclock with MSI AB with crossfire on. Two big issues. 1) Overclock does not stick to your second GPU on computer restart. 2) Powerplay does not kick in for your second GPU and it stays on 100% load on computer restart. The only way to bring it down to idle is to start and then stop a GPU intensive application such as kombustor, furmark, etc.
So, basically, you got 3 options:
1) Stick to what limits CCC offers.
2) Use an Asus bios that someone here has created. And uses Asus Smart Doctor to increase CCC limits.
3) Use RBE to edit your voltages in BIOS. Use a register hack to increase CCC limits.
4) Well, there is a fourth otion. Use register hack to increase CCC limits and just overclock to what your stock voltage will allow.
FYI, Option 4) makes Option 1) obsolete since it achieves the same thing w/o having to flash Asus bios and run crapware smartdoctor.
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