I've been using my processor for a while, and I've OC'd it to 3.2ghz from the stock 2.7, and have had crashes in games such as BF3. Does OC'ing this processor also require a bump in the voltage, and if so, by how much would I need to bump it up?
500 GB HDD
8GB Corsair Vengance @ 1600 MHZ
Radeon HD 6670 1GB
Typically a little is needed. However, how much is hard to say, because every single CPU even though has the same stock speed, isn't exactly the same. Some have better OC potential, while others much less. You also need a good heatsink (not stock) if you are OCing beyond 10% or so.
Putting the voltage up ONE bios increment at a time is the safest way. Go to windows, run Prime 95 blend and see if you can pass 24 hours of testing without crashing/errors in prime.