Overclocking my 9300

First thing you want to do is warm up your 6800 Go before you overclock, so when you do overclock it you ensure that you dont get a false high setting which is fine when the gpu is cold but will likely crash at high-load temps. Its easy to do this, I usually just run 3dMark05 a couple of times or play battlefield2 for 30 mins or so.

Next once your gpu is warmed up (actually look at the temperature in settings to make sure its >50degrees) your ready to overclock.. easiest way to do this if your new to the game is to go into the clock frequency settings panel, select manual overclocking, select 3D Performance and then click "detect optimal frequencies".. the card will now churn away for a few seconds and detect what it believes are the best core/mem frequencies. once its done this select apply settings at startup to make sure you keep your o/clock when you reboot.

Its as simple as that... you can keep going and slowly increment the clock/memory frequencies by 5Mhz and test the response in games by playing for 2hrs + and to stress test the o/clock, but this is a slow process so only sit down to do this if you have time.

You definitely must stress test your o/clock once youve set it though, as this is the only way to see if your card is stable with your o/clock settings. If you get lots of artifact/texture/colour changes then your o/clock is too high and youll need to reduce it. Just becareful o/clocking.. if you push it too high youll risk damaging your card!

Long way... if you want your I9300 a complete OC (monitor, gfx card, hdd, pinmod, overvolt..) for you it may be very risky for anything else except gfx card overclock in nVIDIA CP. You will be fine with the CP.