Quote from: guzzymese on December 20, 2019, 10:46:55 AM

A friend of mine bought 4 cards Sapphire RX 5700, simple, not XT.

He tried to obtain maximum hashrate, setting power limit at -24%, GPU clock and voltage left untouched, mem go up to 930MHz, (if he tried to go above 930MHz, the afterburner slider for memory, goes automatically back to 930MHz, that's maximum achievable).

He left all 4 of them at 920MHz, and all cards worked flawless one day, achieving 53,xxMH for each card.

Today, he found the rig dead and after restart, windows 10 is corrupted.

Moved all 4 cards on a working rig, this one doesn't "see" (recognize) 2 of 4 cards.

Possible 2 cards dead?

I have some Sapphire 5700XT cards, wich freeze instantly the rig if I try go upper 890MHz at memory, I keep all of them at -41% power limit and 885MHz for memory (+10MHz above stock freq), GPU clock and voltage left untouched.

Those cards works with these settings, for weeks, no one problem appeared.

Also on the rig with 5700XT, I have attached one Sapphire 5700 non XT too, (identically as mine friend own), it works perfect for 3 days, set at -24% power limit, GPU clock and voltage left untouched, mem at 920MHz.

Any ideea why my friend cards died?

Is too much 920MHz for memory?!?

For 53 Mh/s on AMD 5700, use the following configuration