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Sapphire HD7870 GE OC overclock?

post #1 of 8
Thread Starter 
Sorry complete AMD/ATI noob here. Haven't had a ATI product since my old X800GT02. biggrin.gif Great card for its time. Anyways, it looks like I am having issues with OCing this new Sapphire HD7870 OC of mine. Seems as though the highest I can get from 1050mhz is 1100mhz. with +20 voltage on AMDs Catalyst Control Manager.

Am I doing something wrong?
Do I need a custom vBIOS?

Here is the exact model.
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&pid=1744&psn=&lid=1&leg=0
Edited by bluedevil - 3/26/13 at 4:55pm
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post #2 of 8
The PowerTune control (+20%) allows the card to draw more power, it doesn't increase the voltage.

I'd disable Overdrive and use Sapphire's own program, Trixx. If the card isn't voltage locked, there's a good chance voltage control will also work in Afterburner.
post #3 of 8
Thread Starter 
Quote:
Originally Posted by villain View Post

The PowerTune control (+20%) allows the card to draw more power, it doesn't increase the voltage.

I'd disable Overdrive and use Sapphire's own program, Trixx. If the card isn't voltage locked, there's a good chance voltage control will also work in Afterburner.

Well that helped a little bit.....stable under OCCT for 5 min @ 1150mhz, not the 1200mhz I was looking for. frown.gif
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post #4 of 8
What voltage do you have it running at?
post #5 of 8
Thread Starter 
Quote:
Originally Posted by AndroidVageta View Post

What voltage do you have it running at?
1.288 - 1.294
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post #6 of 8
Thread Starter 
1175 fails for me. frown.gif
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post #7 of 8
Thread Starter 
At least its stable in BioShock Infinite @ 1150. All is good.
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Samsung 950 Pro 512GB PCIe/NVME SSD Custom WC Win10 Pro X64 Qnix QX2710LED @ 110hz 
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Nixeus Moda Pro Mech w/Khail Browns EVGA G2 850 w/EVGA Black Cableset RaijinTek Asterion Classic Tempered Glass Ed. Nixeus Revel  
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post #8 of 8
Thread Starter 
Just a thought, could the 13.3 beta driver have anything to do with this?
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Samsung 950 Pro 512GB PCIe/NVME SSD Custom WC Win10 Pro X64 Qnix QX2710LED @ 110hz 
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Nixeus Moda Pro Mech w/Khail Browns EVGA G2 850 w/EVGA Black Cableset RaijinTek Asterion Classic Tempered Glass Ed. Nixeus Revel  
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