It started while I was trying to overclock the Radeon software ... While everything was fine, slanted lines appeared on the screen and the computer froze. After forcibly turning it off, when I turned it on I noticed that the resolution has decreased and that annoying vertical stripes have appeared that occupy part of the screen. On "device management" the card showed error 43, the monitor was at 64Hz. On GPU-Z the card frequency was 0. Important values were unknown. Please help me