How to fix memory latency spikes on Biostar B650MT?
During massive combat encounters, I noticed my frame times were jumping wildly between 14ms and 42ms. Even with XMP hitting 6000MHz, the tRFC timings on the Biostar B650MT were way too loose, leaving my memory latency bouncing between 75ns and 82ns. I tried increasing the page file size first, but that was a total waste of time—my 1% lows actually tanked from 55 FPS to 40 FPS, which was beyond frustrating. I eventually dove into the BIOS Advanced Memory settings, bumped the DRAM voltage from 1.35V to 1.38V, and manually tightened tRFC to 480 cycles. After running AIDA64, the latency tightened up to a steady 65-68ns, and those annoying stutters vanished. It wasn't a smooth ride, though; I hit a BSOD on the first boot until I loosened tRAS by 6 cycles to find stability. VRM temps stayed around 50-56℃, feeling warm to the touch. I exported the profile to BIOS, and now frame times are rock steady at 5.1-6.4ms.
