@Mathiau : how many RIC per day do you get using your 2 Xeons E5-2670 and how much power they draw ? I wonder if it is a good idea to buy a Dell Poweredge R810 server with 4 x Xeon E7-4860for $2000 . Those 4 CPUs have 10 cores/20 threads each so it would be 40cores/80threads in total running @ 2.6-2.8 GHz. Is there a benchmark where i can calculate the potential hashrate and the potential earnings/ day?