Manor Lords keeps crashing due to unstable memory frequencies in the late game on my Colorful CVN B760M FROZEN WIFI. Should I bump the voltage?

Once my city population hit 5,000, the game started hitting random memory overflow crashes, which is a nightmare when you've put in that much work. The D5 slots on the Colorful CVN B760M FROZEN WIFI were seeing 0.05V fluctuations around 1.30V at 6400MHz, causing checksum errors. I tried lowering all texture settings, which saved about 2GB of RAM, but the crashes kept happening, proving it was a physical stability issue, not a capacity one. I went into the BIOS and manually bumped the RAM voltage to 1.35V and enabled the memory fast-boot compatibility mode. AIDA64 memory tests now show stable read/write speeds between 85-92GB/s with zero errors over 6 hours. I overshot the voltage at first and the RAM hit 62℃, but 1.35V is the sweet spot. VRM temps are 55-61℃. MemTest86 confirms it's stable, though core temps stay around 62-68℃.