Comdex 2003, my display rig in the Abit booth had a heart attack firing up at 4.4Ghz and the PSU was dead. I tracked back out onto the show floor and found Tom @ Enermax who said sure my 450w power supply could handle the situation, so he gave the the PSU in good faith and I hauled it back to the Abit booth with Tom in tow and snapped it like a twig. Whoops, so we go back out the Enermax booth and grab the biggest supply they had at the show, it was a 651w model that worked great for the entire duration of the show.
Well as luck would have it this year at CES we ran into power supply problems again with a 1Kw single rail from another popular manufacture failed to post on the bench rig.
Source:Enermax Galaxy DXX 1000w Quad Extreme