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Why is my ATI card voltage so low?

post #1 of 6
Thread Starter 
Hey guys I have an ATI Radeon HD 6570 and its a pretty good card but there are a couple problems, currently I have it clocked at 850Core 830Mem and its stable but the voltage will only go up to 1.05v and it was originally set at a default of 0.95v and the card is said to have an effective memory clock of 1400mhz but I cant even get to 1000 without it crashing after a couple minutes, any suggestions on what the problem is or how i could get the voltage higher?
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The HybridAlien
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post #2 of 6
Thread Starter 
nobody? frown.gif
The HybridAlien
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The HybridAlien
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post #3 of 6
DDR memory 700mhz is effective 1400 MHz
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post #4 of 6
When you clock it @1000 MHz that is effective2000 MHz depends on your memory chip it might have a hard time to stabilize
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post #5 of 6
Thread Starter 
oh that makes more sense I didnt know that , well I have it clocked at 830 so I guess that is a pretty good overclock smile.gif I still dont get why the voltage is so low though and why its not adjustable :/
The HybridAlien
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The HybridAlien
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post #6 of 6
Try MSI afterburner and see if you are able to tweak it after turnning on "adjust voltage" in settings.

I have 5870 and 6950. Tweaking the vcore on non-reference 6950 is hard because bios is digitally signed and you cannot change it too much like in 5870. Guess you will have the same problem if you ever want to edit bios in RBE by yourself.

The better chance is to get a copy of tweak application from your card manufacturer (e.g. try smartdoctor for asus card ). That way you might be able to change the vcore.

HD 5800 and 6900chips runs fine below 1.2 Vcore maybe you can try that on yours. However lower-end cards tend to be less capable of dissipating heat you have to try and err to figure out the limit of your particular card.
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