Why is my Corsair Vengeance LPX 3200 stuttering in AC Shadows?

Sprinting through the streets of Kyoto was a nightmare; the game would just hitch out of nowhere, which is incredibly jarring in an open world. I found that the default timings on the Corsair Vengeance LPX 3200 were struggling with heavy NPC logic, causing memory latency to swing wildly between 72-88ns. I tried bumping the page file to 32GB, but that was a total waste of time—it didn't stop the lag and actually made loading screens 10% slower. I eventually dove into the BIOS, manually locked the frequency at 3200MHz, and tightened the timings to 16-18-18-36 while pushing the voltage to 1.35V. Monitoring via RTSS showed my 1% lows jump from 38 FPS to 62 FPS, and the frame time graph finally flattened out. I did hit a couple of BSODs at first, but loosening the tRFC to 560 cycles fixed it. Temps sat around 42-48℃ for the RAM and 55-60℃ for the VRMs. After a few benchmark runs, the frequency stopped jumping, and frame times stayed consistent at 5.1-6.4ms. It's a bit of a hassle to set up, but the stability is worth it.
Category:Software Usage Last updated:March 9, 2026 4:45 PM