My Galax B760M D4 is unstable during massive battles in Warhammer III with XMP on, any fix?

When ten thousand units clash on screen, the visuals would suddenly glitch out and then—boom—Blue Screen of Death. I was honestly ready to toss the board out the window because I knew it was a memory instability issue. The memory controller on the Galax B760M D4 was struggling with the massive data throughput, and the XMP 3200MHz voltage was flickering around 1.35V, causing checksum errors. I tried dropping the frequency to 2666MHz, which stopped the crashes but increased loading times by 30%, which was a dealbreaker. Instead, I manually pushed the DRAM voltage to 1.38V and tightened the tRFC from 560 down to 460. After 6 passes of MemTest86, the 8 errors I was seeing completely vanished. I did try pushing tRFC to 400, but the game crashed the moment it launched, so 460 is the sweet spot. RAM temps are 45-52℃ and VRMs are at 58-63℃. Frame times are now a consistent 5.1-6.4ms.