i see thats 13.04 but why choose that? why not choose 13.10?

I do not know myself but I worked with that was not a problem
Thanks for cupon :ssd2014
What hash rates are you getting at these servers?
I have about 1100kHash/s on a 4930k (at 4.5GHz) with 11 treads.
I have about 1280kHash/s on a 980X (at 4.1GHz) with 11 treads.
For primecoins the 4930 is usually 50-70% higher than the 980X, but for some reason it is not so for Metiscoins..