Artifacts on the video card, in some applications, what to do?

Question

Iron

In general, I bought a Radeon r9 nano video card (On Avito, after mining) I tested it from the seller, everything is fine, the temperature is not higher than 74 degrees. I came home, put it in the PC, we test it in the furmark. -for temperatures. I changed the thermal pass, undervolted the video by -10%. The temperature is not higher than 70 degrees, but the screen in the truck brand strangely lags, in other benchmarks and stress tests there is no such thing. Then I went to test games. artifacts, Look dogs 2, 2 hours very high settings. 0 artifacts. bury the video card?

Answer 1

The mining bios could have been edited, it would be nice to flash a completely stock version for reliability.