I'm currently using an RX580 4GB i bought from a korean computer surplus. I worked fine for a short while but then it started to glitch out some textures in DotA 2. I tried re doing the thermal paste and cleaning it and the issue still persists. Now when playing other demanding games when it reaches its full 100% load it usually crashes giving an amd driver timeout error. Are there any workarounds on this or is this a hardware issue.

My card's a Maxsun variant with dual fans