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Computer doesn't boot after installing new power supply

After installing a new power supply, my computer won't boot. I get a green and red LED next to the boot button. Curiously, they stay on for a short while even after the power is completely disconnected. I have made sure to set it to the correct AC voltage.
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  1. Best answer
    What make/model is the PSU? Are the motherboard cables properly connected (24 pin and 8 pin)?
  2. Devballs said:
    What make/model is the PSU? Are the motherboard cables properly connected (24 pin and 8 pin)?


    It's a Thermaltake TR2 600W. I'm pretty sure everything's properly connected.
  3. Never mind, fixed it.
  4. do you mind telling me how you fixed it?i am having the same problem
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