Why does Fortnite crash to black screen with Asgard Snow DDR5 6400?

Every time I hit the loading screen for a battle, the system would black screen and reboot without warning, making me seriously doubt my upgrade. I tried disabling all power-saving options in the BIOS, but that just spiked my idle temperature to 68℃ per AIDA64 without fixing the crashes, which made me very anxious. I used the GamePP Power Plan Switcher to force the system into High Performance mode and disabled core parking. OCCT tests showed voltage stabilized at 1.38-1.42V, and AIDA64 confirmed VRM temperatures remained at 58-65℃ during a 3-hour stress test.