Intel CTO Justin Rattner has revealed more details of Intel’s solar powered processor – a technical project unveiled by CEO Paul Otellini in his IDF opening address on Monday.
The solar CPU, codenamed Claremont, is based on a regular Pentium core, but its power consumption has been pared back to approach the lowest voltages that permit the internal transistors to operate.

“The design is so old, we had a hard time finding a Pentium motherboard," explained Rattner.
"We actually went out on eBay looking for one. […] We’re at the frontiers of computing, and we were looking in dumpsters for motherboards. Fantastic.”

I like this bit: