My Onda B760ITX-B4 keeps crashing during heavy rendering in Project Orion. Do I need to lower RAM speed?

This Onda board basically has a meltdown under heavy 3D rendering; it would just crash every 30 minutes. Event Viewer was flooded with memory management errors, and it was clear the memory controller couldn't handle 6000MHz. I tried enabling 'Memory Enhancement' in the BIOS, but that was a disaster—it actually made the crashes happen every 10 minutes instead of every hour. I eventually dropped the RAM frequency to 5600MHz, set the SoC voltage to a manual 1.2V, and loosened the tRFC timings. After that, Prime95 ran for 12 hours straight without a single error, and the game stopped crashing. I lost about 4ns of latency, but honestly, you can't feel that in-game, and stability is way more important. RAM is now 45-51℃ and VRMs are 65-72℃. I used the board's export tool to save these BIOS settings, and the RAM temp is staying at 45-51℃.