How to fix DX12 crashes on Onda A520-VH-W in Forza Horizon 5?
This budget board is a joke; crashing in a racing game is just embarrassing. After digging through forums, I found that early BIOS versions for the Onda A520-VH-W have terrible DX12 support, especially when hitting high-frequency memory addresses. I tried turning off ray tracing, which helped a bit, but I was still crashing every two hours—a total waste of time. I took the risk and flashed the latest v1.21 BIOS via USB, then did a full CMOS reset. After a 10-hour stress test, not a single crash. One annoying thing: the BIOS flash reset my RAM to 2133MHz, so I had to manually re-enable XMP to get back to 3200MHz. Board temps are sitting at 40-50℃ and it's actually stable now. I exported all the BIOS settings to a config file just in case. It's a cheap board, but it finally behaves. Board temp is holding steady at 40-50℃.
