I got a number of hard “power offs” like what you describe, and it was a result of too low voltage going to the CPU. I have my case fans set at very low revolution speeds, but those few gusts of wind seem enough to cool the RAM as well. Now it maxes out at 140W for the entire CPU package, and the Noctua fan has no problem keeping it below 85 degrees ( C ) at full load. ![]() Took many hours to get the system stable, and I ended up under-volting and frequency limiting the CPU since it almost melted with the voltages I used to initially get everything stable. Was lucky enough to have SK Hynix A-dies, so could apply the “buildzoid” timings right off the bat. The uplift was tremendous ~40% for 4X upscales and ~30% for 2X ( details). ![]() The result confirmed my observation about being memory bottlenecked for the VAI workload. I wasted even more of my precious time trying to get the AM5 system closer to the rated component specs, and managed to boost memory speeds from DDR5 3600 to 6000. It would be great if someone else who uses DDR5 with two DIMMs at the full rated memory speed could log their DRAM bandwidth utilization stats as well. In my case it seems the DRAM is the bottleneck. DRAM Freq: 1.8 GHz (infinity fabric & memory controller clocked the same). ![]() Gaia 1X: 15.91 fps 2X: 11.27 fps 4X: 03.28 fpsĤX Slowmo Apollo: 35.43 fps APFast: 61.60 fps Chronos: 32.73 fps CHFast: 27.60 fpsĬPU clock: 4.8 GHz (locked, under-clocked, no turbo boost)
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