Question My system is unable to detect my gpu. Can someone help me please?

Jun 22, 2021
It happened to me once, but i ve fixed it by reinstalling windows, now i have the same problem and i have tried another hdd s like i did last time but the gpu still shows no signal on screen. But all components are ok, the problem is probably caused by some software error. The pc worked perfectly yesterday, and today i set it on and this comes on screen, although my integrated gpu works normally. Can someone help me please?

My specs: I5-3470-K
Gpu: R9 280 and dual channel 8gb ram.