Yes, you might have made a mistake.
Yes, you might have made a mistake.
It was my initial project, choosing components but it wasn't until after getting my RAM that it became "Intel XMP Ready" for a Ryzen 7 7800X3D. From my earlier update, I can't access the post and encounter a red CPU and DRAM indicator on my motherboard (x670e Steel Legend). Could this be due to the incorrect RAM I purchased, and should I have selected the AMD Expo variant instead?
In my previous message, I'm still unclear about the problem. The BIOS update didn't resolve it, probably because it was necessary in the first place.
I'd likely suspect a mounting issue with either the CPU or RAM. Try reseating the RAM first—since it's the simplest to handle—testing one DIMM at a time in each slot, then moving to the CPU if needed. A photo of your setup would also help clarify the connection and pinpoint any problems.
The images suggest only the CPU LED is illuminated, indicating one of five possible issues: incorrect connection of the CPU 8 pin, corrupted or unsupported BIOS, improper seating of the CPU, dead CPU or board, or a failed reflash. Since you've already re-flashed the BIOS, verify the 8-pin setup, then re-seat the CPU if needed, and then consult the RMA process for further steps.