Cpu not booting up power bottom blinking

when I turn on the computer all it does the desk top the power bottom start blinking and not booting up that is all it does, not even goes to the bios program
 
No I haven't add anything it just happen with out no reason aparently and the hard drive doesn't make any noise
 
"not even goes to the bios program" That's the info I'm talking about. Is it a new computer or old? Did it work the day before? Did you have a BSOD and now this happens? Do the CPU fans turn on? Any motherboard LEDs lighting up besides the power button? Those motherboard lights are indicator lights and can tell you whats going on.

I don't know what the problem is...