Fixing sync issues on Biostar H310MHD3 for Rainbow Six Siege
Whenever I flicked my view, I'd see these obvious horizontal tears across the screen, making precise headshots nearly impossible. The Biostar H310MHD3's internal video output was having sync clock offsets at high frequencies, causing the refresh rate to wobble between 140-144Hz. I tried forcing 'Disable Fullscreen Optimizations' in Windows, but that actually made the tearing worse and added some weird flickering—just great. I went into the BIOS, disabled the onboard graphics entirely, and forced the PCIe link to its maximum power state. In RTSS, my frame times tightened from a jittery 6-12ms to a rock-solid 6.9-7.1ms. I noticed a huge spike in input lag when I first turned on V-Sync, but switching to 'Fast Sync' solved that immediately. The board stays cool at 40°C - 45°C with the fans barely spinning. Tearing is completely gone, and the 6.9-7.1ms frame time is consistent.
