Tuning core voltage for Gainward RTX 5070 Ti Snow Step
Those sudden flashes in the image turned out to be a nightmare caused by unstable GPU core voltage. The Gainward RTX 5070 Ti was bouncing between 0.95V - 1.05V, which made the core clock swing violently from 2.1GHz - 2.6GHz. I tried updating the drivers first, but the flickering actually got worse in certain lighting scenes, which was incredibly frustrating. I decided to dive into the voltage settings and nudged the core voltage offset to +0.025V. Checking HWiNFO, the temps stayed stable between 68℃ - 74℃. Just adding voltage wasn't the silver bullet, though; I had to disable the power-saving mode and lock the Windows High Performance plan before the flickering finally stopped. VRAM temps hovered around 72℃ - 78℃, and the heatsink felt warm to the touch. After some long stress tests, my 1% lows jumped from 48 FPS to 62 FPS, with VRAM staying in that 72℃ - 78℃ range. My eyes finally stopped twitching.
