Hello all, and sorry for my english.

But, I have card Sapphier nitro+ RX580 4GB (Elpida) oc with moded bios, strap from 1500.
If I set the memory clock over 1900MHz it stops running, restarts the driver and on monitor are green checkers.

This problem has the RX 570 (Sapphire nitro+ oc) of the same type and memory. Problem over 1850MHZ


Can you help me pls?
THX