Dealing with signal sync issues on Manli RTX 5090 D?
Hitting 400 km/h caused these weird horizontal tears that looked absolutely jarring on a high-end rig. Looking at the logs, the GDDR7 memory on the Manli Star Ship RTX 5090 D v2 OC 24GB was drifting by 2-4ms when frequencies pushed past 28Gbps, losing sync with the monitor. My first instinct was to toggle V-Sync in-game, but that spiked my input lag to 50ms—it felt like I was steering a boat, which was just pathetic. I went back to the NVIDIA Control Panel, set G-Sync to 'Enable for full screen mode', turned on Low Latency Mode, and hard-locked the refresh rate to 144Hz. Using a frame time analyzer, the sync error dropped from 4.5ms to a tight 0.8-1.2ms. I did notice some brief flickering when I first enabled G-Sync, but swapping my old cable for a certified DP 2.1 cable fixed it instantly. Core temps sat at 58℃ - 64℃ while VRAM stayed between 72℃ - 78℃. After a 5-hour marathon of high-speed driving, the VRAM temps remained rock solid at 72℃ - 78℃.
