urgent help with pc solved

[TwixCJ]

When I turn on my power supply my computer keeps turning on and off like once every second why is it doing this (sorry if I put the post in the wrong place)

[XTankSlayerX]

What are your specs?

 

Op's specs

 

• CPU
  Intel Core i5-4690K 3.5GHz
• Motherboard
  MSI Z97-GAMING 7
• RAM
  Corsair Vengeance Pro 8GB (2 x 4GB) DDR3-2133 Memory
• GPU
  EVGA GeForce GTX 970 4GB Superclocked ACX 2.0
• Case
  Phanteks Enthoo Pro ATX Full Tower Case
• Storage
  Crucial MX100 256GB 2.5" Solid State Drive, Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive, Western Digital RE4 1TB 3.5" 7200RPM Internal Hard Drive
• PSU
  Corsair CX 500W 80+ Bronze Certified Semi-Modular

[TwixCJ]

What are your specs?

 

Op's specs

You have my specs so do you no why this is happening

[Lord_Karango17]

You have my specs so do you no why this is happening

That seems an awful lot like an electrical problem, but that system should be sitting fairly comfortably under 500W.

 

Try making absolutely sure all the cables are plugged in properly.

(I have had times, where the 24 pin cable looked like it was plugged in, but it was at an angle so only half the pins were getting power, and the PC ended up turning on for a sec and turning off again)

[Lord_Karango17]

Also you probably don't have this problem, but make sure that you haven plugged in your cpu power into the gpu/ vice versa, as they look identical (cpu power, and the 24 pin motherboard cables are the ones that aren't removable on CX series PSUs)