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anyway to bypass 1.150V for Vcore on the GTX580?

post #1 of 12
Thread Starter 
so ive been able to run 99 loops of crysis bench with the GTX580 at 963MHz with 1.15V

I want 1GHz, but anything past my current clock will crash the drivers. im water cooled and my load temp doesnt go higher than 53 degrees after 99 demo loops.

anyway I can bypass MSI afterburner's voltage limit of 1.15V?devil.gif

gtx580.png
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post #2 of 12
Edit the BIOS with a higher voltage cap & flash it back to the card, highest allowable when editing the bios is 1.213, then afterburner will allow the higher voltage.
    
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post #3 of 12
Thread Starter 
wow, just did a google search. looks pretty risque with hex editing and such. will probably void warranty?
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post #4 of 12
Use NiBiTor, no hex editing required.
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post #5 of 12
Quote:
Originally Posted by subliminally incorrect;12096506 
wow, just did a google search. looks pretty risque with hex editing and such. will probably void warranty?

Its not risky at all, unless you shut the power off in the middle of the flash.
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post #6 of 12
uh oh , just fyi they wont RMA a user-fried card biggrin.gif be careful with 1.2v

and get the new drivers broski 263.09 is old news
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by jp27;12096744 
uh oh , just fyi they wont RMA a user-fried card biggrin.gif be careful with 1.2v

and get the new drivers broski 263.09 is old news

1.2V eh? im tempted to try it. not sure if it will kill it.

all to make it to 1GHz....
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post #8 of 12
Just be careful with the volts as you go higher. Watch that the temps don't go over the max.
    
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post #9 of 12
Quote:
Originally Posted by subliminally incorrect;12096779 
1.2V eh? im tempted to try it. not sure if it will kill it.

all to make it to 1GHz....

It should be fine taking 1.21v I have a gtx480 with the flashed overvolt bios and mine won't go past 55'C loaded on 1.21 I usually just use 1.21v for benching. Not sure if I would recommend 24/7.
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by skatpex99;12096955 
It should be fine taking 1.21v I have a gtx480 with the flashed overvolt bios and mine won't go past 55'C loaded on 1.21 I usually just use 1.21v for benching. Not sure if I would recommend 24/7.

yeah i had a gtx480 before i stepped up to the 580 and I had the voltage maxxed out on it. its jsut a matter of the VRMs able to pump out enough juice to handle the increased shaders... gotta do more testing.
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