GPU Crunching Overclocking?

I know that in the f@H client Shaders are most important

With using GPU crunching, what is the best method of OCing my video cards?

Is there a certain setting over the other to OC, ie. GPU, Shader, and memory?

I've got my two GPU's going @ 750/1617/1300 (GPU/Shader/Memory)

These settings are close to the max on the GPU side of things before it doesn't like it.


So any suggestions would be helpful. I just wanna get that RAC higher to get me into the Top 20 Hosts. (CPU won't go faster, gotta keep it stable)


Thanks Jason



Pics of GPU-Z
GPU1



GPU2

I know that in the f@H client Shaders are most important, not sure about boinc

ive got my 8800gt at stock clocks, but the shader is at 1750
the shader gives you the biggest increase in performance as compared to ocing the core or mem clock

i dont think you can get higher with those gts's
could probably pick up another 260 for cheap

I've tried upping the Shaders and with EVGA Precision the shaders jump from 1620 up to 1678 and then I get errors. So I guess 1620 is the max shader speed for me.