Fixing CPU slowdown in Total War: Warhammer III on Crucial DDR4
In those massive army clashes, every time I zoomed in, the FPS would plummet from 60 down to 22. The stutter was unbearable. With Crucial DDR4 2400, I was only getting about 32GB/s of bandwidth, which became a massive bottleneck when calculating AI for thousands of units. I tried turning off unit shadows in the settings, but that only gave me 3 FPS—it didn't touch the bandwidth issue at all, which made me realize I was fighting the wrong battle. I checked my slots and moved the RAM from a single-channel to a dual-channel config, then enabled Fast Boot in the BIOS. AIDA64 read/write tests showed bandwidth jumping from 32GB/s to 41-43GB/s, and the battlefield finally felt fluid. I actually had a failed boot after the first swap, but a quick reseat and cleaning the gold contacts fixed it. RAM temps are 40-46℃ and VRMs are at 55-60℃. The in-game performance panel shows the CPU load is much more balanced now, with RAM staying at 40-46℃.
