[PPCFreak]

no overclocking software is cooked in the ROM. Will need to install seperate.

Look for WinMoSpeed. It may be attached here already (click on the paperclip).

Overclocking doesn't hurt anything as long as you small steps at a time to find what your hardware will except.

748 has usually been pretty safe on the majority of hardware. Some can get 768 to run stable and a few even stated they go higher.

I would start a 748 and us that for a while. Try 768 and if the phone does freeze/lockup, then you should be good with this.

If phone does lockup, simple softreset and move down one step.

Do this testing BEFORE making a copy of the overclock settings and putting it in the \Windows\Startup directory.