Fine tuning rigs

[mu50stang]

I'm running 5830's on my rigs and was wondering whats the most effecient clock settings for electric on these cards?

[phorensic]

I'm not sure clock speed has to do with how efficiently it uses electricity.  Voltage sure would affect it though.  I would run at the highest clock speed you can without bumping up voltage.  If you bump up voltage it starts to use more amperage in almost an exponential fashion.  I believe it's very linear with clock speed increase.  I'm running at 960 core, 300 memory.  I used to be able to do just over 1,000MHz when the cards were new.