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Easy BIOS volt mod for 7800GT


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Just found this thread at XS, worked like a charm on my XFX. Raises Vgpu to 1.5V, and took about 5 minutes. Results using Coolbits Detect Optimal Frequencies:

 

Before: 488 / 1.12

After: 512 / 1.17

 

Give it a look!

 

NiBiTor 2.5a available here and nVFlash here.

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  • 1 month later...

bump on an old thread, coz i just did this yesterday and it works like magic!! before, coolbit detect 485/1.12, now it detect 514/1.19 !! i bump the mem to 1.2 and core to 515, bench no artifact no bluescreen! great mod!

 

HOWEVER, the new nvbitor is 2.6A, u DO NOT NEED to change to 6800series and do all those volt manual mod... all u need to do is load bios from card, go to volt settings, put a tick on extended voltage, select 1.5, save. reflash card. DONE!

 

boost 3Dmark05 from 8121 (470/1.1, mine is eVGA CO), to 8340+ (forgot how much, its this morning, im late to work)

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i hear ya, :nod: :nod: theres also a 82.65 out, noticed u had 82.12 in sig

 

no s**t? hows it perform? 82.12 was a beta but im a regular at guru3d.com forum and lotsa people said its a good one.

 

gonna check now ;) thx!

 

edit: too many complaints :P i'll pass

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Guest laydback

I've been using this mod for a while. A good resourse for info regarding this mod is www.MVKTECH.net , the mod is only for GT cards because GTX cards use a different voltage table. In addition the mod only works on some cards so the only real way to tell is with a multimeter.

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