My pc starts up then turns of straight away.

EvooBrudda · Dec 26, 2015

I have a i5 4690k 4.5ghz already bought and I have a VS 550w and a z97-p asus motherboard do you think the psu is the reason for the crashes? Ive tried everything by changing the ram re-applying the thermal paste and nothing seems to work.

alexoiu · Dec 26, 2015

New, or old setup?

EvooBrudda · Dec 26, 2015

This is new

alexoiu · Dec 26, 2015

Then I suggest testing it outside the case, as it looks like a short. Check the standoffs, if mounted in the right spots.

EvooBrudda · Dec 26, 2015

I mean when I line up the motherboard onto the case all of the screws line up the only thing is my motherboard is too big for my case so the led lights and power switch and the other wires are underneath the motherboard could that be a reason why the pc is turning off?

alexoiu · Dec 26, 2015

It could be. It looks like something is shorting the circuits.

EvooBrudda · Dec 26, 2015

I left my motherboard out and just connected the cpu and 24 pinpower and the its still turning off

alexoiu · Dec 26, 2015

Remove the front panel cables and the 8 pin power cable.
Start the board by shortly touching with a screwdriver the 2 pins on the motherboard corresponding to the case power button.. See if still the same.

EvooBrudda · Dec 26, 2015

The fans run for the cpu then just turn off same thing.

alexoiu · Dec 26, 2015

A last test would be with the power supply: https://www.youtube.com/watch?v=5FWXgQSokF4
Connect 1-2 fans to it and see if spinning, or restarting.

EvooBrudda · Dec 26, 2015

Yhh my fans are working

alexoiu · Dec 26, 2015

Then it looks like a motherboard issue.

EvooBrudda · Dec 26, 2015

Some times when I do the motherboard outside the pc test the fans are running for a long time.

alexoiu · Dec 26, 2015

Then RMA both motherboard and power supply, just to be sure.
By the way, I'd change that PSU. It might not be the culprit here, but it's not good quality. Actually, it's the lowest in Corsair series: http://www.corsair.com/en/power-supply-units

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My pc starts up then turns of straight away.

EvooBrudda

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EvooBrudda

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EvooBrudda

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