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New Giga i5 machine wont boot - power cycles

Last response: in Systems
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Do you have a power supply to swap and test? I have seen a similar issue and it just turned out to be that not all the power cables to the mobo/gpu were seated correctly, so that's one thing to check real quick.

Thanks - reading stickies now (first time on this forum)

Tried with PSU and CPU only connected and same behaviour.

A short or faulty PSU seem most likely.

I'll have to try and source another PSU

I tried another PSU - no change.
Tried taking MB out of case - no change.

The only change is if I connect the ATX cable the LEDs and power stay on for longer - maybe one second, instead of going off almost instantly.

Any more ideas out there?
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