FP-IN9 - overclocking advice?

Hi,

I've got an E6600 running on an FP-IN9 that I'd really like to try
overclocking to 3GHz. I've tried upping the FSB to 333MHz while leaving the
memory clock alone, and the system will boot into Windows, but freezes after
playing games for a while. Any suggestions? The last thing I overclocked
was an AMD K6!

Thanks,

JB