Running a Ryzen 7500F + B650 system with 1x16GB Kingmax 4800MHz (No XMP, EXPO). All stock, no EXPO/OC.

The Problem:

  • Games: CS2 reboots (Kernel 41) and GTA V crashes (0xc0000005) after 1-2 hours.
  • Stable: Rock solid for light office work.
  • Testing: Memtest86 passes 100% (zero errors), but TM5 Anta777 Extreme fails.
  • Already swapped PSU and reinstalled Windows updated BIOS—no luck.
  • It seems like a issue with my RAM.

Is TM5 Error enough for an RMA? I'm worried the distributor will only run a quick Memtest86 and claim it's "fine." Has anyone experienced DDR5 failing only when "baked" by the GPU?