I ran my GPU at 1.86GHz and 875mV for some time and wondered, why I got crashes in Warzone and Ghost Recon Breakpoint. The crashes happened randomly, sometimes after 10 minutes of gaming, sometimes after more than 1 hour - and sometimes not at all. Initially, I attributed them to buggy games, but when Cyberpunk 2077 came out, the crashes happened more frequently. For reasons I can't fully grasp, it seems that inefficiently coded games tax the GPU in quite a reliable way to produce crashes. Cyberpunk 2077 allowed to test in short intervals as it would reliably crash within 45 minutes of starting it. After adding voltage to reach 900mV, all those games have become stable. I.e. my undervolt was too aggressive but did not show up in most games or even the 3DMark Stress Test, Unigine Superposition, ... Just as a FYI, in case you are experiencing games that sometimes crash at random.