Power supply not working in my new build

Hi , I have got this components:
- intel core i5 2400
- Asus geforce gtx 550 ti
- gigabyte z68xp-ud3
- Gigabyte powerock 500 watt
- seagate 1 tb
- (2×4gb) kingston rams

after i assembled all the component in the case , it worked for i while and then stoped working at all
no power comes from the psu , so whats the problem ? :cry:
* sry 4 ma Eng :sarcastic:
3 answers Last reply
More about power supply working build
  1. What do you mean by no power is coming from the psu? No boot? PSU does not light up when turned on?
  2. in the first time fans spin, lights come on for a sec and turned off then in the next times ther's no boot
  3. ????
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