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Model details: AMD Ryzen 7 7800X3D with ASRock B650M PRO RS G.Skill Trident Z5 RGB, DDR5, 32 GB, 6000MHz. Includes CL40 Gigabyte UD1000GM PG5 1000W ATX 3.0 SSD, Corsair MP700 1TB M.2 2280 PCI-E x4 Gen5 NVMe 2.0, PNY GeForce RTX 4080 XLR8 VERTO GAMING EPIC-X RGB. Recent BIOS update didn't resolve issues. Fans are spinning, but CPU and RAM status lights are red. Possibly incorrect RAM selection? Further research suggests DDR5 kits exist for Intel and AMD. Uncertainty remains about CPU health despite motherboard compatibility claims.
I recently assembled a PC using the same model - i5 12400 on a b760m-p motherboard. I struggled to identify the cause of the CPU debug light appearing despite full BIOS support. I experimented with several approaches: 1) Booting with just one RAM stick, 2) Checking debug light when no storage is connected, 3) Disconnecting and reconnecting power cables, 4) Testing various PSU power ports for the CPU cable. None resolved the problem. The positive outcome was re-seating the CPU. RAM should function, though "Intel/AMD optimized" settings are often just marketing terms and shouldn't matter much. I've also heard AMD CPUs can be more sensitive to RAM types, but it seems unrelated here.