How to fix memory errors on Onda B760ITX-B4 for Metro?
Seeing those weird horizontal tear lines across the screen was a nightmare, especially when sneaking through tight corridors; it completely broke the immersion. The default XMP profile on the Onda B760ITX-B4 was hitting random latency spikes of 12-18ns during heavy rendering, causing the CPU and GPU to lose sync. I tried enabling V-Sync in-game, but that added about 40ms of input lag, making the controls feel like I was playing in mud, which was totally unacceptable. I went into the BIOS $\rightarrow$ Memory Settings and loosened the primary timings from 16-18-18-36 to 18-20-20-38, and bumped the DRAM voltage from 1.35V to 1.38V. After five passes of MemTest86, the error count dropped from 12 to 0, and the tearing vanished. I actually pushed the voltage too high at first and triggered the motherboard's overheat protection, which was a wake-up call. Now the RAM stays between 45°C - 52°C, and AIDA64 confirms the response time is finally snappy and responsive.
