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Soft Voltage Mod for ATi Cards?

post #1 of 11
Thread Starter 
Hi all,

I recently read on the forum that ATi cards can be flashed with a modified BIOS that will soft mod the cards voltage to provide more of it to the GPU and/or VRAM? Is this correct and if so can it be done to my X800Pro and is it even advisable with air cooling?

Sorry if I am a little behind with this question, but I was under the impression that the only vmods possible had to be done with hardware, not software?

Thanks in advance for you help!

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post #2 of 11
I have been wondering the same thing also. Bump.
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post #3 of 11
Can we at least get a "no" out of someone? Bump.
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post #4 of 11
Thread Starter 
Quote:
Originally Posted by rippon
Can we at least get a "no" out of someone? Bump.
I don't think they like us!! LOL

Come on you ATi gurus, I know you're out there! Help us out here, please!

Is GPU/VRAM voltage controlled by the Video Card's BIOS on ATi Cards like the X800 Series? If so, is it possible to edit the BIOS somehow to instruct the card to give more voltage to the GPU/VRAM? If so, how is this done?

Although I'm sure you Gurus aren't swayed much by REPs, anybody who can answer the questions definitively will get REPed, hard! LOL

Even links to internal or external information that leads to definitive answers would help.

Thanks!!

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post #5 of 11
Daily Bump.... How long before we go onto page two just from bumps?

Midnight bumps don't do well, next time it will be at primetime.
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post #6 of 11
Lol! Well I'm no Guru but I'll guess I'll have to do

I've never heard of a soft voltage mod on an x800/x850 card. However, the new x1800/x1900 can be voltage modded with ATITool and possibly the rest of the x1xxx range. These cards have variable voltage ie. lower when just in 2D mode (to conserve power/life expectancy etc) and higher when in 3D mode for extra performance. The creator of ATITool worked out how to manually change the voltages on these cards, but as far as I'm aware this cannot be done on other ATI cards I'm afraid.
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post #7 of 11
I dont think there is an option in the bios like nvidia that will let you up the voltage through the bios. You can try using the attached program and see if it works with your card. I know there are volt mods for your cards but i think that is the only way to get what you want

http://www.techpowerup.com/articles/...voltmods/112/2
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post #8 of 11
Quote:
Originally Posted by ThaWaxShop
I dont think there is an option in the bios like nvidia that will let you up the voltage through the bios. You can try using the attached program and see if it works with your card. I know there are volt mods for your cards but i think that is the only way to get what you want

http://www.techpowerup.com/articles/...voltmods/112/2
Yarr, the program doesn't work for me . It says my graphics card isn't compatible. Guess it is a no go. Thanks anyways.
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post #9 of 11
You can't soft vmod the old cards. Only the X1xxx series work...
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post #10 of 11
Quote:
Originally Posted by Sideburns
You can't soft vmod the old cards. Only the X1xxx series work...
Yea I think Sideburns is right on this one, The older cards such as the X800/700 series have to be physically volt modded. See the link provided by Tha Wax Shop for details. However for those of you with the X1800/1900 series all you need is ATI Tool, Lucky you. LOL
You can find a download for ATI Tool at www.guru3d.com
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