underclocking

[Dogoid]

i have a 2900xt and as a power saving method i decided to cut down the gpu and mem 2d clocks by over half.

gpu 200 mhz

mem 148 mhz


3d clocks are 750 gpu and 830 mem.

original 2d clocks were 500 gpu 500 mem { roughly }


amps used to be 30.0 a now they are 11.0 a , with a gpu temp of 32 c .


im just wondering how low i can go in 2d mode as im thinking the power i save in 2d mode would justify somewhat the power this baby uses in 3d mode.

 

[Dogoid]

thanks, ill get rid of this ccc and use that instead.

 

[Dogoid]

If You feel up to it editing the Cards bios will give You the best results

as i understand it, any editing of the bios destroys the signature, and that's not good. unless i can find a signed bios , im not sure i want to go down that route.

 

[Dogoid]

Your only changing values, sometimes checksum correction would change maybe the logo or something non-critical
Bottom line is 5 mins to reflash back to original factory bios !

The Cards are to complicated with Multiple power phases etc to do what You want to do with just software without a lot of hassle !

it would be beneficial as the clocks i set do not stay that way after a restart.

can you point me in the right direction to what tools i could use, articles etc?

thanks

 

[Dogoid]

rivatuner doesn't support modding at the driver level for ati cards, which means that you are unable to do 2d and 3d profile clocks. bummer.

 

[Dogoid]

i need to lower my 2d clocks and have it applied at boot time. ati tray tool does not do this

 

[Dogoid]

I am sure Rivatuner could do this with my 2900XT

no as said above, riva tuner does not give you access to the driver settings if you have a ati card, they only do full nvidia support.