I have a problem with the RTX 2080 OC and GPU Tweak II 18.104.22.168. When I set the GPU voltage higher than normal, there is no change in the monitoring, it still remains at 1.05 V highest voltage. Increased the GPU to 180 MHz, still 1.05V. Just checked with MSI Afterburner and EVGA, no change in voltage so far possible. Drivers are up to date.