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Max safe voltage for GTX 470 - Page 3

post #21 of 30
Quote:
Originally Posted by Rocket Dog View Post
I wouldn't go over 1.087v on air cooling.

Any thing over that and you need to get it under water.
With the stock cooler I agree but OC cards that come with aftermarket coolers such as the Zotac gtx 470 AMP have no problems with above 1087mv.

Mine does 887mhz core with 1137mv, Could probably get more with a waterblock
post #22 of 30
It's a pretty simple task to unlock Fermi voltage adjustments up to 1.213v with NiBiTor.

I probably wouldn't go over 1.1v on stock cooling, depending on temps. 1.15v on very good aftermarket air, or 1.2v on a full cover waterblock.
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post #23 of 30
I remember I hit 850/1700/4000 on my EVGA SC 470 back when they first came out. I managed to unlock the maximum voltage pictured on the first page but I was too timid to go any further as I was already hitting 90*C in Crysis and AvP even with the Gelid Icy Vision.
     
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post #24 of 30
Quote:
Originally Posted by Blameless View Post
It's a pretty simple task to unlock Fermi voltage adjustments up to 1.213v with NiBiTor.

I probably wouldn't go over 1.1v on stock cooling, depending on temps. 1.15v on very good aftermarket air, or 1.2v on a full cover waterblock.
is 1.2v for 24/7 safe under water? just wondering.
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post #25 of 30
Quote:
Originally Posted by Knight2000 View Post
is 1.2v for 24/7 safe under water? just wondering.
If you have a Rad to cope with the heat then yea.

VRM's generally become more efficient the cooler they run so I imagine that 1.2v on water would be less stressful then 1.087v on air.

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post #26 of 30
I just got one. Stock volts of .925. Ive got 840/1680/1850 @ 1.025v. Temps get into the 80's though as i am on stock cooler. This is MSI Kombuster stable, and worked fine in benching and GTA IV. But have to run fan at 100%
post #27 of 30
my cards are at 850mhz core and 2180mhz memory @ 1.1v ... at max load i get 55degrees

there is a time when the card would do 875 @ 1.15v but the screen has white lines across it at intervals of 2secs.

have unlocked the bios for max voltage but when i take the past 875mhz any 1.15 or 1.213v the screen goes white or black and the computer freezes ...
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post #28 of 30
Thread Starter 
So i figured out why my BIOS wasnt working. I took a screenshot of the error and it says software write protection enabled, unable to erase origonal eeprom. How do i disable that?
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post #29 of 30
nvflash -r first
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post #30 of 30
Thread Starter 
Quote:
Originally Posted by Knight2000 View Post
nvflash -r first
Ahh, that did it. Thanks, now my voltage goes past 1.087.
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