Name of CPU Multiplier?

Alright, so I'm following the AMD Phenom overclocking thread and need some clarification on two things:

Overclocking utilizing the CPU Multiplier method of overclocking is very simple:
Increase your default CPU Multiplier until it won't pass POST, then you may increase the VCORE and try raising it some more. Really, the only thing that is imperative with this type of overclocking, is to ensure your CPU temperature is within normal full-load limits (again, upper 60*C range for Phenom architecture, lower 60*C range for PhenomII architecture)
Very simple, yet effective.
Some of you may find that overclocking via the CPU Multiplier method will yield better results than any other way, and some of you may find that overclocking via the FSB method will yield better results.
It's really up to you to find out what type of overclocking gives the best results - testing with Everest's Cache and Memory Benchmark as well as SuperPI are very quick and dirty, but give you a decent idea of throughput vs. other settings.

Ok, first off, what would the name for the CPU Multiplier be on an M4N72-E motherboard? Would it be CPU ratio or FSB frequency? Noob question, I know.

Now, for the second question in orange text, when it says to increase your default multiplier until it won't post then increase the VCORE, is there a certain limit? I know that raising the VCRE to high can potentially damage the CPU. Is there a way to know which multiplier and voltage would work best?

I've decided to do the CPU multiplier method since it seems much, much easier then the FSB method.