I think the first thing you need to do is read an OC guide
Check out your motherboard manual and reset the BIOS.
That GB mobo is a champ but I doubt the clock will go 400MHz (unless you have some very, very exotic cooling) ---- the standard is 200MHz.
1) Drop the memory from 5.33 to 4.00;
2) Increase the CPU freq from 200MHz to 220MHz; and
3) Monitor your temps while stressing the cores at 100%.
If you are comfortable with your temps after 30 or so minutes of testing, increase the CPU freq from 220MHz to 240MHz ---- Test and monitor
At 240MHz x 14 (the standard stock CPU multi) your CPU will be running at 3.36GHz and should 'turbo' at 240MHz x 17 (IIRC) or 4.08GHz.
I would think that would max out the stock cooling.