Computer shut down within 5 seconds even run bios

[Computer gamer123]

I have made a gaming PC using Asus p5p77d evo motherboard in 1 year ago.now it shutdown within 5 seconds after turn on and even run bios.it has been do repeately what can I do?CPU led blinking I think the store is in there..
2*ddr3 1gb rams
2*ddr3 4gb rams
Gforce gtx 770 VGA
Water cooler
Samsung ssd included.

 

[Lutfij]

When posting a thread of troubleshooting nature, please pass on your full specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

You sure you're not referring to the Asus P7P55D-E Evo? If your system reboots while you're in BIOS then the PSU is the culprit however without knowing what the make and model of your components are, we're only left guessing.

 

[geofelt]

Your symptoms sound like a non functioning cpu cooler.