Pc not booting up normally

One night i went to sleep and than when i woke up my pc wouldn’t turn on normally. The fan rgb lights would turn on and fans including gpu fans would spin but that’s it. My mouse lights or keyboard lights wouldn’t turn on and my monitor would detect something which it says “No Singal” everytime i turn it on and than just automatically turns back off. Recent thing that happened is when i disconnect my gpu my mouse lights would turn on but not my keyboard lights, and every time i put it back it would just not work at all.