Hi, I am trying to flash my msi ARMOR RX 580 OC cards using SRBPolaris and it shows me 2 types of memory on each one, Micron-Elpida and Hynix. Should I change straps for both set of timings? or Should I change only one set of my choice? in order to increase mining speed of the card.

Could anyone help me with this?

, please advise me
Only change straps for memory thats actually on card...you can change both, but no need,
one is dummy