I need to know whether or not it will destroy my computer f i overclock a Q9450 from 2.66 to 3.0.I have a 750W power supplyA 750i motherboardI have no special cooling but a case with good airflow.I also need to know the specifics on how to overclock.Like my name says i am a newbie this is the first computer im putting together and i need to know what i can and cant do. Any help is awsome!

Well... I don't have any experience overclocking an Nvidia motherboard, but I can tell you that 3.0 is a very safe overclock with the 9450. You could probably do 3.2 pretty easy.

I only want it at about 3.0 what i need to know is how to do it and do i need to change the voltage? im very noew to this

I only know intel boards, but the bios should be similar. Somewhere in the bios you need to change the the number 333 to 375 (with an 8 multiplier its 2.66 to 3.0). Its a very safe overclock, you should not need to change the voltage. However, if the setting is auto it may make the voltage to high.

So get CPUZ and see what voltage your q9450 is running at not overclocked (make sure the multiplier is 8, cpuz will tell you this. You need to make the computer run something to have it run at at 8 instead of 6.) Then plug in that voltage for you cpu in the bios when you overclock. Heat shouldn't be an issue even with stock cooling, i push my q9450 to 3.7 on air. If the computer crashes quickly then raise the voltage one increment.

How do i get to the bios and where do i find the CPUZ? also where do i get stress teat thingame's

its best to set the vcore to CPU VID thats what i do always before i start overclock.

if a safe oc on the 45nm cpus i will set 1.4V vcore being the max SAFE limit.but personally i will still push to 1.45v or 1.5v depend on load temp.

thats all fine and dandy but how do u get to bios??? im still waiting to order my computer so i want to know how to do it before hand so i can just OC it when i get it