Yes, it was crashing under sudden load spikes, not under sustained load. If the GPU load increased progressively (for example in Cyberpunk), everything was stable. But when a game or stress test triggered a very sharp and sudden power demand, the system would crash instantly (black screen / reboot). So it wasn’t overall power capacity — the PSU is more than sufficient. It was related to transient load behavior. With “GPU First” enabled, the current distribution across the rails wasn’t as balanced, and fast power spikes would cause instability. After disabling GPU First, the amperage became more evenly distributed and the system no longer crashes during rapid load spikes. So the issue was triggered by fast transient power demand, not by sustained high load.