Rivatuner Software Volt Mod (Confirmed)

[Mekks]

http://www.ocxtreme.org/forumenus/showthread.php?t=4427

takes alittle time to figure out but it works! tryed lastnight and it bumped my 4870x2 upto 1.35v under load.. i read it with gpu-z and rivatuner.

also works with the gtx2xx line, you can see on that post a few people used a dmm and it does boost the power.

[ziggo0]

Damn, doesn't work with non-reference 4870's :(

srsly nice find though

[Falkentyne]

Works on old reference Visiontek 4870, but from what people have been saying, it doesn't help ONE BIT in FireFly forest (3dmark 2006)...the max GPU clocks are exactly the same as without the mod...someone mentioned that this mod apparently does not affect the shader voltage supply, so you will still lockup in Firefly forest at the same point as if you used stock volts. Vantage and folding are helped considerably though, with the higher GPU clocks from more voltage.

Anyone with catalyst 9.1 notice a change? (i wouldnt expect a change from drivers anyway...)

[NewbieOneKenobi]

Could you do something like that with a 4850?

[Hardass]

My Voltage regulator output reading does not change under load?? I can change idle voltage and it reads correctly but does not change when I run F@H.