Overclock Your Dreamcast - RetroGaming with Racketboy

Just read this about how some people actually did some surgery on their DC and overclocked it from 30mhz to 340mhz. Sounds like a pretty cool idea but arent they worried about the thing melting? :lol: I mean at the end of the article they said their DC was fine and the stock fan cooled it just fine but how long can the thing last?

Has anyone here ever did this?