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Built new computer - when I try to power it on it will turn on for a half second to shut down.

As the title says, built a new computer and when i try to power it on it will power on for about .5 sec then power down. I also here a little zap noise but Im certain i have everything plugged in correctly

cpu- i5 3350p
mobo- asrock b75 pro3-m
ram- kingstone hyperX black 8gb ddr3
psu - raidmax rx-630ss 630w
7 answers Last reply Best Answer
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  1. im assuming the low quality power supply is your issue. do you have another psu to test with?
  2. I dont but I was just using the psu in my old computer, i guess I should get a new one?
  3. well if it worked in your old pc, i would think the psu is ok.
  4. I also hear a little zap but Im not sure if thats it trying to power on or a short, but I do know the have all the mobo risers on and in the proper position
  5. Best answer
    try booting with no HDD or optical drive, and only one ram chip.
  6. thanks for the help but its just a case of extra stupid on my part when I thought I was turning the psu on I was actually turning it off -.- but thanks for trying to help =D
  7. lol, glad you figured it out. enjoy your pc.
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