I recently built a new PC with an AMD Ryzen 7 9800X3D and a NVIDIA RTX 5080, but I'm running into issues. When I power it on, the CPU fan doesn't spin, and none of the CPU, DRAM, VGA, or BOOT diagnostic LEDs light up. The only indication I have is that the audio ports on the motherboard light up. I attempted a BIOS flashback, which seemed to work since the LED indicated success, but it didn't resolve the problem. Here's a list of the components I used and what I've tried so far. All the parts are brand new, and I would greatly appreciate any advice!
1 Answer
Have you tried booting with the monitor plugged into the motherboard instead of the GPU? It’s possible the system might POST without the RTX 5080 connected. It’s worth a shot!

No luck with that, still nothing happened.