undervolting 7950

[imginy]

Hey guys is there a way to undervolt my new gigabyte 7950 as it's for mining coins so I don't need the full 1.25v that it comes with stock.

Thanks

 

[Rusty0611]

Nope.

Not that I could find anyway.

 

[wazza300]

I don't think it lets you if its voltage locked,you can try with trixx or msi afterburner

 

[imginy]

Ok thanks

 

[imginy]

The latest version of trixx lets me down the voltage

 

[Rusty0611]

It is actually reducing the voltage though because although MSI AB would allow me to adjust the voltage it wasn't actually changing it.

 

[LtMatt]

Use gpu-z to confirm that the voltage is actually lowering.

 

[Gregster]

A multimeter is the best way to tell. When overvolting 680's, AB/Precision X/GPU-Z would report voltages but would be out massively.

 

[tommybhoy]

http://forums.overclockers.co.uk/showthread.php?t=18509458

If you copy the red text into your 'PP_PhmSoftPowerPlayTable' value, it will give you a voltage of 1125mV if that's of any use imginy.

 

[LtMatt]

http://forums.overclockers.co.uk/showthread.php?t=18509458

If you copy the red text into your 'PP_PhmSoftPowerPlayTable' value, it will give you a voltage of 1125mV if that's of any use imginy.

^^ Gold.

 

[tribz]

http://forums.overclockers.co.uk/showthread.php?t=18509458

If you copy the red text into your 'PP_PhmSoftPowerPlayTable' value, it will give you a voltage of 1125mV if that's of any use imginy.

Could you make that a bit more nooby for me as I didnt follow it?

One of my 7970's is at 1.25v and I wouldnt mind dropping it down a bit as I only run them at 1.075 GHz.

 

[imginy]

It is actually reducing the voltage though because although MSI AB would allow me to adjust the voltage it wasn't actually changing it.

Yes your right it was doing nothing

http://forums.overclockers.co.uk/showthread.php?t=18509458

If you copy the red text into your 'PP_PhmSoftPowerPlayTable' value, it will give you a voltage of 1125mV if that's of any use imginy.

Thanks I may have to try that but I did want to keep the 1.25 for gaming.

 

[tommybhoy]

Don't use the red text then and just follow the instructions using your own reg file.

@tribz,

I can't make it much simpler bud, it's easy really.

 

[Loxa]

Trixx was the only program that changed my voltage with a gigabyte 7950 and i confirmed the voltage did change in GPU-Z

 

[imginy]

Trixx was the only program that changed my voltage with a gigabyte 7950 and i confirmed the voltage did change in GPU-Z

Do you know what bios you were using?

From what I read it works with some bios not others and it wasn't working with my card so I was going to change bios.

 

[Loxa]

FZ1

At some point i did flash to F42 but flashed back not long after.