Hi guys. I recently upgraded my Via Epia ME6000 with a more powerful pc (AMD 1.2Ghz) in order to make a smallish media center pc. Being used to the amazing passive cooling Epia provides, I want to do the same in this machine, BUT it has to be able to fit in a 1U case (not exactly 1U, but around the same height). Can this be done? If yes what heatsink? Do I have to underclock a bit? Thanks in advance.