This isn't for FX chips but the process is almost identical:http://www.tomshardware.com/forum/274820-29-black-edition-overclock-raising-multiplier-guide
The max safe temp for your chip is 61C
Keep your Vcore below 1.5v. (You will probably be limited by heat before you get to the point where you need 1.5v)
There is one feature called "APM" that will throttle your CPU to a lower speed after it has operated under load for a bit. Old BIOS versions don't even show the feature but some of the newer boards and BIOS versions show the feature and allow you to disable it.
Take some time to read the sticky and take small steps.
The general idea is to keep voltage and temps as low as possible while keeping your CPU stable.