Why does Corsair Vengeance RGB DDR5 6400 stutter in Horizon Online?
Right in the middle of a fight with other players, my FPS would just dive to 40 for no reason. In a competitive game, that's basically a death sentence. I checked the hardware and found the Corsair Vengeance RGB DDR5 6400 voltage was wobbling around 1.35V, causing the memory controller to trigger error correction constantly. I tried downclocking to 5600MHz, which stopped the drops but cost me about 6 FPS on average—I wasn't okay with that compromise. Instead, I flashed the latest BIOS and set a manual voltage offset of +0.05V to lock it at 1.40V. In RivaTuner, the red spikes in the frame time graph totally vanished, and I'm now seeing a steady 6.5-8.5ms. I actually lost my boot priority after the BIOS update and spent an hour fixing the boot order. Now RAM temps are 52–58–℃ and it's rock solid. 3DMark stress tests show 99% stability, but the RGB strips add a bit of heat.
