Why is my Corsair Vengeance LPX acting up in Space Marine 2?
Whenever the Tyranid swarms flood the screen, my frame rate would tank from 110 FPS to 60 FPS without any warning, which was a total nightmare for the game flow. After digging into the logs, I found that the DDR4 dies on my Corsair Vengeance LPX were hitting voltage drops of 0.06V - 0.12V while running at 3200MHz, pushing memory controller latency up to 130-160ns during heavy physics calculations. I tried toggling Windows Game Mode, but the frame time spikes stayed between 20-40ms—completely useless. I eventually went into BIOS $\rightarrow$ Advanced $\rightarrow$ Memory Settings and manually bumped the voltage from 1.2V to 1.35V, then loosened the tRAS timing from 36 to 40 to give it some breathing room. Running MemTest86 showed random read latency plummeting to 92-105ns, and those micro-stutters in swarm fights vanished. I did hit a snag where the RAM hit 62℃ and triggered a system reboot, but after tweaking my case airflow, it settled at 48-54℃. Everything is rock steady now with a flat voltage curve.
