Oh, I know these are very low power. But even if each board only takes 1 watt, if you've got 40 of them you're talking the same power consumption as a laptop CP

Oh, I know these are very low power. But even if each board only takes 1 watt, if you've got 40 of them you're talking the same power consumption as a laptop CPU, but with a much longer distance for power delivery. But I'm still curious exactly what the power is, what the resistance of the power connections are, etc. As you said, it gets more interesting when they're not in a backplane, so I wanted to figure out what the constraints are. Someone on one of their blogs linked to http://www.xmos.com/ http://www.xmos.com/ which is also pretty interesting. It's a single chip with 4 cores, each of which can run 8 threads. And it takes care of all the switching between cores or even between chips. It doesn't have all the same features as this board does, such as the dynamically switched power/signal pins, but same sort of idea. Edit: In fact, the modularity of this is one of the more interesting aspects of it to me. I'd like to see how they're switching pins between signal and power dynamically. But, there's no schematics that I can find.