System was live with a Ryzen 3 3200G and DDR4-3200 2x16GB for several years on Bios version F40. Last fall I moved a EVGA GTX 960 SSC into the system and it's been fine. Last week, I updated the Bios to F67d (latest) and installed a Ryzen 5 5500. The system won't boot and stops with the DRAM light lit. I've reseated the ram, and even swapped in some slower DDR4-2666 2x8GB. Replacing the Ryzen 3 3200G boots right up.
