Cpu red light problem

[delfoxoscar]

I turned on my system unit, it showed some of the system specs like ram capacity and shit, then turned off. I tried it again, it loaded to the desktop environment, then tuned of again. And it has been doing this way since. And there is the issue of red light, sometimes blinking but most times stable. Help me solve it

 

[CountMike]

No idea which computer you have. Please list at least main components.