Overclocking saphhire 4870 512mb

[release]

It has no voltage control. I can't even see the current voltage in MSI afterburner. It can currently get up to 780mhz without errors in OCCT gpu test. Is there anyway to increase the voltage on this card without having to hardware mod it? Temps are not a problem.

[tman540]

Try using Sapphire Trixx. Works great

[release]

there's still no voltage control.

[tman540]

there's still no voltage control.

are you using the most up to date version. clearly has a voltage meter under overclocking tab

[release]

it tells me that i'm at 1.263 volts, but i have no control. I press + or - and does nothing.

[release]

SO i used RBE to get the volts to 1.35 but gpuz and trixx insist on saying that it's still at 1.263. However, 785mhz on the core is now stable. Can anyone tell if the volt change actually applied?

[Sindree]

That's strange, i have a Club3d 4870 512mb and i can change my voltage in Afterburner.
Doesn't make a difference though 850mhz core is max even at 1,350v