You'll need to get the Hardware Monitor running 1st, and you might have to install some plug-ins depending on what you want to monitor. Here's a
RT guide...it should help.
Just do 1 slider at a time. See what your core will do, then see what your shader will do, etc. Once you find the max core, take note, and then go back to default and start on your shaders. Same w/ vRAM. Once you find all the maxes you can set it to that and go from there. You'll probably be a bit unstable, and it is just a matter of figuring out which of the 3 freq is causing issues. Also, when you get your shaders up there you'll notice that you have finer core clock control, so you might be able to tweak that as well.
Also note that what you set is NOT what you get. You'll need to have the Hardware Monitor running to see your actual clocks. Not every notch on the slider will do anything, and at a certain point you won't be able to go higher on the core (756) unless you raise the shader a little bit.
I usually crank the core and shaders up pretty quickly until I get immediate artifacts in ATI Tool, and then go down from there. It just takes to long to do it 5-10MHz at a time. A good starting point might be 750 on the core and 1900 shader. ATI Tool, any of the 3Dmarks, FUR, & the Crysis Benchmark are all good at bringing out errors. I like ATI Tool b/c it makes an audible warning, and if you leave the room you just compare the run times to see if you've had an error while gone. The other one's you have to watch for artifacts. Of course if you have a lock-up you've obviously gone too far.
The vRAM is a whole other animal. Viper John has recommended running the 'Canyon Flight' from 3Dmark05 for about 8-10 loops. To run the loops you have to have the 'Pro' version, and I like to crank up the settings as well to further stress it. 1680x1050 (or your native rez) 4xAA, 16xAF, and a few other options I can't remember. On my card it seems that the 'Battle of Proxycon' from 3Dmark03 seems to be a weak spot just like on the 8800GT. It's probably a good idea to run 8+ loops of that as well just to be sure. The F.E.A.R benchmark also seems to bring out these issues, but I'm not sure if you can run loops like in 3DMark.
There is something about the above mentioned tests that brings out the weak-spot in these Qimonda vRAM chips...or perhaps the memory controller. In any case you'll see a memory avalanche (red or green crap all over the screen and lock-up) if you go to far.
Which sticker are you talking about? The loosely applied 'Warranty VOID if Removed' sticker? i wouldn't remove for obvious reasons. Press the sticker on there better, or if you are willing to risk it you could carefully remove it w/o tearing it, and put it somewhere safe, so you can re-apply it before you step-up, but that seems like more trouble than it's worth to me.
care to let it go?
