I'm getting random crashes in large towns in Assassin's Creed Valhalla with Corsair Vengeance DDR5 6000 96GB, should I lock VDDQ?

Exploring England was great until the game started randomly dumping me back to the desktop, which made grinding for upgrades an absolute anxiety-fest. The default XMP profile for the Corsair Vengeance DDR5 6000 96GB kit was causing VDDQ voltage to swing wildly between 1.25V and 1.38V when handling huge datasets, triggering memory checksum errors. I tried dropping the frequency to 5200MHz, which stopped the crashes, but the asset loading became noticeably slower, making me very hesitant to keep that setting. I eventually went into the BIOS and manually locked the VDDQ voltage at 1.35V and loosened the tRFC timing from 480 to 560. After 4 consecutive rounds of MemTest86, the errors that used to pop up every two hours completely disappeared. I actually tried 1.40V once and the temps spiked to 62℃ instantly, so I backed it off to 1.35V. Now temps stay stable at 52-58℃ and the game is buttery smooth. System logs show zero memory management errors, and temps remain in that 52-58℃ window.