What I like to do in SLI is to sync the cards together in EVGA Precision (probably the simplest of OC programs; you will be using this for OCing) and then unlink the shaders from the the core clock. I usually find my max memory clock first and that will usually tell you how far you can OC your core and shader. For stability you can run benchmarks such as Vantage or stress tests like Furmark, but, these don't always guarantee stability. You will need to run benches in Crysis or graphically intensive games also. Or you can simply play a game for hours on end paying close attention to artifacts or crashes/glitches/other graphical problems. When my memory clock was unstable, Crysis would constantly artifact on screen and eventually led to poor FPS. If problems occur or if your benchmarks are lower with each core/shader/memory increase, it means instability. At that point you need to back the clocks down and retest. It's a very long process. It took me about 6 hours to get mine. There are tutorials in the essentials thread up there somewhere. Good luck.
Basically Precision looks like this.
1 is where you save OC profiles
2 is to Sync the cards together
3 is fan control
4 unlink shader from core
5 your GPUs
6 click this to apply your settings
In order to enter the clocks etc you can use the slider bar or you can manually enter a value and press enter.
I usually run a log like this in Notepad with all my benches. Here I have Crysis in FPS followed by my specs and then Vantage scores. As you can see my most stable is my all around highest FPS and Vantage score.
Edited by Villosa - 1/28/10 at 12:00pm
...way too many things happening there! Does anyone have a tutorial, or something easy for a beginner overclocker to follow?
