Why does Onda A520-VH-W drop RAM speed under load?
Watching Spider-Man fly through NYC is great until a sudden frame drop ruins the momentum. I found that the Onda A520-VH-W was automatically dropping the RAM frequency from 3200MHz to 2133MHz under load, causing frame times to explode from 11ms to 28-35ms. I tried enabling High Performance mode in Windows, but the RAM kept diving, which pushed me to just handle it in the BIOS. I disabled all auto-frequency scaling and hard-locked the RAM at 3200MHz with a slight voltage bump to 1.32V. MemTest86 confirmed the setup is rock solid with zero errors. The first time I locked it, the system wouldn't even post, but loosening the tRCD timings finally got me into the desktop. RAM temps are sitting at 42-47℃ and the VRM area is around 55-60℃. Now that the downclocking is dead, frame times are stable at 5.1-6.4ms.
