Why am I seeing random texture flickering with my Corsair Vengeance LPX 16GB during base construction?

My base textures suddenly turned into these glitchy purple blocks, and it only got worse as I expanded my build. Digging into the cause, I found that with XMP enabled, the memory controller voltage on my Corsair Vengeance LPX DDR4 3200MHz 16GB was drifting between 1.34V - 1.36V, causing occasional bit flips. I tried dropping the texture quality to medium, but that just made the game look like a blurry mess, which felt like a total cop-out. I booted into BIOS and slightly downclocked the RAM from 3200MHz to 3000MHz while manually locking the DRAM voltage at 1.38V. Running AIDA64, the memory latency stabilized from a jumpy 82-95ns to a steady 88-91ns, and the flickering completely vanished. I actually pushed the voltage to 1.4V at first, but the system hit a thermal trip and rebooted instantly, so 1.38V was the sweet spot. Temps hovered between 45℃ - 51℃ without any errors. After four full passes of MemTest86, the data transmission was flawless, and temps stayed rock solid at 45℃ - 51℃.