PC Build Trouble

Well, I just put my pc together and I turned it on, it starts out fine but then to power supply fan turns off and the power supply and the system shuts off after about 3 seconds
 
Can you give a little more detail, about what you are building and how you went about putting it together. A description of all your parts and a list of all the power connections would be a good start.
 
Check your memory make sure it is seated. Also make sure the Cpu Fan is mounted correctly. Last but not least make sure all connects are tight and hook up right. Hope fully someone here might have a few more I deals to help you out. Also post your PC specs.
 
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