Hello all,

    I am a newbie for mining ETH.  I have 2 AMD cards and use lolMiner 1.18a.  One is RX470, another one is RX570.
When I began mining ETH.  I found my two cards Hashing rate were 22H/s, 24H/s respectively.

1) What I can do on my cards modding up to 30H/s like other people?
Moreover, I found the temperature around 74C degree even they were at lower hashing rate.

2) Would I need to lower the core voltage in order to get cooler temperature?

Thank you for your helps!