Can PCIe link optimization fix lag on Onda 9D4-DVH?
It's honestly a joke that this ancient board struggles this much with modern AAA titles. The PCIe link on the Onda 9D4-DVH was having a meltdown during high-throughput data transfers, with I/O response times swinging between 20ms and 55ms, causing the game to just freeze for a second or two during map loads. I tried disabling all background updates in Windows, but that just made my boot time 3 seconds faster while the freezes stayed exactly the same—a complete waste of my life. I finally updated to the latest chipset drivers and forced the PCIe speed to Gen3 in the BIOS to stop the link from constantly renegotiating. In CrystalDiskMark, the random read latency dropped from 32ms to a stable 18-22ms. I did have a weird issue where the system struggled to boot twice after the change, but it sorted itself out after a few restarts. Board temps are around 45℃ - 52℃. Exporting the I/O logs confirmed the lag is gone, and the game finally feels responsive.
