How to fix memory bandwidth bottlenecks on ASRock A320M?
Whenever I turned quickly, I noticed severe screen tearing, and that disjointed feeling is absolutely lethal in a firefight. Looking at my specs, the ASRock A320M-HDV R4.0 was running memory at a default 2666MHz, which meant when handling the Remastered version's high-res textures, memory latency spiked to 88ns - 102ns, creating a massive data bottleneck. I first tried cranking the virtual memory up to 32GB, but that didn't help at all; in fact, my 1% lows dropped from 45 FPS to 31 FPS, which made me realize the issue was physical bandwidth. I went into the BIOS, forced the memory frequency up to 3200MHz, and bumped the DRAM voltage from 1.2V to 1.35V. AIDA64 benchmarks showed latency dropping from 95ns to a much cleaner 72ns - 78ns, and scene loading became way more fluid. I did hit a few Blue Screens of Death early on because my tRFC timings were too tight, but loosening them by 20 units stabilized the rig. Board temps sat between 50℃ - 56℃. After 5 straight stress test loops with zero errors, memory temps stayed around 58℃ - 63℃.
