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 Post subject: Undervolting ATi 5770 without bios editing
PostPosted: Wed Feb 15, 2012 1:39 am 
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Joined: Fri Feb 18, 2011 6:33 am
Posts: 39
This came up on the thead for my energy efficient gaming PC in the gallery section and with MikeCs permission I am listing it here so that anyone who might find it useful:

Undervolting Your Graphics Card How-to Guide

Hope that this might be useful to anyone.


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 Post subject: Re: Undervolting ATi 5770 without bios editing
PostPosted: Wed Feb 15, 2012 3:03 am 
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Joined: Fri Dec 19, 2008 2:55 am
Posts: 257
Location: Naples, Italy
I already tried that with my 5670 months ago, and I discovered that my power consupmtion didn't change even at 0.9v in 3d mode. Don't ask me why... I guess it's a bug in ATT.

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 Post subject: Re: Undervolting ATi 5770 without bios editing
PostPosted: Wed Feb 15, 2012 3:53 am 
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Joined: Fri Feb 18, 2011 6:33 am
Posts: 39
It could be to do with stepping of the voltage, I found that it was only when I reduced the voltage to at least 1.000v that I saw a change. Have you tried going lower that 0.9v to see if that has any impact?


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 Post subject: Re: Undervolting ATi 5770 without bios editing
PostPosted: Wed Feb 15, 2012 4:03 am 
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Joined: Fri Dec 19, 2008 2:55 am
Posts: 257
Location: Naples, Italy
Not yet, I'll let you know

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PC Intel i3-2120 - Ibook 12'' 1,33ghz 1.5GB PC333 160GB- MBP 15'' i7 2,2ghz 4GB - T-Mobile Vibrant - YamahaP90 - Nikon D80/18-105


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