Using Kingbank Blade DDR5 for Cyberpunk 2077 and I keep getting black screens after OCing to 6400MHz. Do I need to bump the voltage?

This is what happens when you chase numbers over stability. I initially pushed the voltage to 1.4V in the BIOS, and while it passed short stress tests, the moment a big explosion happened in Night City, I got a black screen. In environment 2026-08-G, I used a reverse validation method: I dropped the frequency to 6000MHz and went into the voltage control panel to change the core voltage offset from 0 to +0.025V. GamePP showed the RAM frequency staying rock steady at 6000MHz - 6100MHz with zero errors over a 3-hour torture test. I didn't hit the 6400MHz goal, but the actual FPS difference was only about 2 frames. Trading peak numbers for actual stability is the only way to actually play the game.