Help Build My PC - $100 (Midlothian)

I've got a problem.
I built PCs for a living in my 20s, and now that I'm in my 50s, I have no idea what I'm doing.
There's been so much change.
I have the following core components, and I can't get it out of POST: - ASUS motherboard B760M-PLUS WIFI D4 - be quiet! Pure Power 12 M 850W (ATX 3.
0, 80 Plus® Gold, Modular Power Supply, for PCIe 5.
0 GPUs and GPUs with 6+2 pin connectors, 12VHPWR Cable Included, Silent 120mm be quiet! Fan - -BN505 - Intel i7 14700K - ASUS video card DUAL GeForce GTX 4060 8GB - 32GB RAM (2x16) Lexar 4 DDR4 - Samsung NMVe 990 PRO SSD 4TB PCIe 4.
0 M.
2 Can you help? Derek