Running Einstein gravity wave and Seti work
The Ryzens are running Seti work. The i3's are running Einstein gravity wave work
All running Einstein BRP4 work
It seems there is a Trojan out that specifically targets the Raspberry Pi. Apparently a lot of people don't change the default password. Here is a link to the article: http://www.guru3d.com/news-story/new-linux-trojans-installs-crypto-currency-mining-software-on-raspberry-pi.html
The copper heatsinks from Enzotech arrived yesterday. I have ordered 3 more Pi3's and a couple of cases.
Electricity price increase
My current electricity retailer has announced a 16% price increase for electricity and 9% for gas from the 1st of July. There are a couple of other retailers I could switch to. I will compare them but I expect they will all increase around the same time.
The electricity price increase would mean the Ryzen upgrade (from a 1700 to 1700X) would not be cost effective. It uses another 30 watts for around a 10-12% increase in output. I might have made the right decision about which Ryzen chip to get after all :-)
I have seen a natural gas powered generator around the size of a washing machine for business use but they have a high purchase price. A diesel or petrol powered generator is going to be cheap to buy but cost a lot to run. Its time to look into a solar and battery solution.
Other farm news
My current planning has me looking at another pair of Ryzen 1700's. I have spare cases, hard disk drives and graphics cards for them to keep the cost down. This would free up the i3's for something else although I don't currently have anything in mind for them.