How to fix memory channel async on Biostar B550MH in MGSV?
While sneaking into enemy bases, the game looked smooth, but I'd get this subtle, annoying twitch every few seconds. It was incredibly distracting. Monitoring showed that the dual-channel memory on the Biostar B550MH was running asynchronously, causing bandwidth to swing between 35 GB/s and 42 GB/s, with instruction latency hitting 15-22ms. I tried turning on Windows Game Mode, but that's just a placebo—it didn't touch the memory issue. I went into the BIOS, switched the memory frequency from Auto to a manual 3200MHz, and tuned the memory controller voltage to 1.1V. In AIDA64, the read/write speeds stabilized at 44-46 GB/s, and the twitching stopped completely. I actually got some memory checksum errors at first, so I had to relax the timings from 16-16-16 to 16-18-18 to get it stable. Memory temps are now 40-46℃ and the board is at 45-52℃. It's finally buttery smooth, though the BIOS is a total mess.
