They can mine bitcoin. They can't be used for mining bitcoin. It proves nothing whatsoever about the utility of old S5s, any more than this[1] shows that old 60

They can mine bitcoin. They can't be used for mining bitcoin. It proves nothing whatsoever about the utility of old S5s, any more than this[1] shows that old 60s mainframes "still have some power that can be used". [1] http://www.righto.com/2015/05/bitcoin-mining-on-55-year-old-ibm-1401.html http://www.righto.com/2015/05/bitcoin-mining-on-55-year-old-...