Need a hand Troubleshooting why my DDR5 6400 RAM is failing to

Build: ASUS ROG CROSSHAIR X670E HERO AMD Ryzen 9 7950X 128 GB G.SKILL Trident Z5 RGB Series DDR5 RAM 6400 NVIDIA RTX A4000 16GB EVGA SuperNOVA 1000 GT I get an error Q-code on boot, pre-bios, of ‘0d’. Then it fails to boot. One or Two Sticks(either set), it boots fine and I’m up and running. When I boot with Four the first time from Two, it boots fine, the problem is when I restart it, it gives me an error code. I am wondering, is it compatibility? Is it because the ram are XMP optimized

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Need a hand Troubleshooting why my DDR5 6400 RAM is failing to initialize the boot sequence… - Build a PC - Level1Techs Forums