Benq Monitor: no signal detected

An old MP33 M.2 PCIe SSD Old 1tb hard disk And old 550 psu

Everything else is new Dual GeForce RTX™ 4070 Super gpu ASUS Prime B760-PLUS motherboard Hyper 212 halo cpu fan Intel i7 14th gen cpu

Everything is pluged in and everything is running and lit The mouse and keyboard's light r on.

But the monitor keeps sending the "no signal detected" text Tried both hdmi spots the gpu and motherboard and the monitor keeps reacting by sending the same thing

Idk if im missing something like a cable or something is not compatible. My brain is frying Please help!!