How to fix 144Hz screen tearing on Maxsun MS-eSport B850ITX?
During fast attacks, I kept seeing these obvious horizontal rips across the screen, making precise blocks a total nightmare. The Maxsun MS-eSport B850ITX's low-level output was having sync clock offsets, causing the refresh rate to wobble between 136-144Hz. I first tried forcing 'Disable Fullscreen Optimizations' in Windows, but that actually made the tearing worse and added some weird flickering—a total fail. I eventually went into the BIOS, disabled the onboard graphics output, and forced the PCIe link to its maximum power state. RTSS showed the frame times tighten from a jittery 7-15ms to a stable 6.5-7.1ms. I tried V-Sync at first, but the input lag was unbearable until I switched to Fast Sync. Now the motherboard stays cool at 45-50℃ and the fans are barely audible. Comparison tests confirm the tearing is 100% gone, with fans idling at 1100-1300RPM.
