But be careful when changing the voltage,
your CPUs default voltage is between 1.15v and 1.25v and then you have to make sure that the cooler you have can handle it too. If you need to change the bus speed then you have to check the memories speed too...the smartest would be to "take a base line" with (for ex.)
CPU-Z.
You will want to write down at least the "bus speed" and "dram frequency", if you are going to fine tune the overclock by increasing the bus speed then the dram frequency will also increase and if it increases much you will get bluescreens...and loads of them..
Then there is also one other thing you can do to get better performance, you can also increase the NB frequency (under HT Link in CPU-Z). Now for example I'm once again going to use my rigs overclock, by default mine is 2000MHz but now it is running at 2200MHz and on my mobo I only needed to change its multiplier to get it to increase so it was easy enough
and I could actually increase it some more because I have just recently added a few fans to my rig. I guess the max for my rig is 2500-2600MHz...but that is different for everyone...
Then one other thing, do it step-by-step / one thing at the time and see how it runs and if it's stable and don't push everything to the max at once, increase just a notch at the time
Anyhow, keep this thread up to date
P.S. The AMD Overdrive doesn't work for me, it doesn't recognize the vCore, Core Temp. and it can't "find" all the cores :/ then also the "Auto tune" or what ever it was called, the thing that should overclock the system automatically just gets me a big fat bluescreen...so that's also why i recommend a "manual overclock"
oh...and btw, I have a Noctua NH-D14 that keeps my CPU @ ~33 Celsius (idle) and at full load it can go up to ~55 Celsius