No Power

[MicroStutter]

I believe I have everything connected properly. I am using almost the exact same setup I did on my first build other than the PSU, GPU.

Specs:

Case: NZXT Phantom 410
CPU: i5 3570k
Heatsink: Hyper 212 EVO
MoBo: ASRock Z77 Extreme4
RAM: Corsair Vengeance Low Profile 8GB 1600
GPU: EVGA GTX 680
HDD: Seagate Barracuda 1TB 7200 RPM 64MB SATA 6.0
PSU: Seasonic SS-620GM (first build used a Seasonic X-Series 850W and worked like a charm)
Optical: ASUS DRW 24x DVD-Burner

Everything is identical compared to my first build other than the PSU. I have never encountered a problem with not being able to power up a PC so how does one determine if it is the PSU that is dead or faulty or can something else cause the system not to power up.

 

[theloveablemoose]

try and jumper the power supply by putting a paper clip in to the motherboard connector on any black wire and the green wire that should start up the power supply as if the power button has been pressed.

 

[WskOsc]

I'm assuming that by 'no power' you mean pressing the power button has no effect?

If this is the case then re-check the cables used for the power and reset buttons (usually in on cluster on the bottom-right of the motherboard) and make sure they're all set up properly. If that doesn't resolve it, double-check all your power cables are properly inserted and secured (on occasion and with certain PSU cable designs the +4 pin connector on an 20+4 Pin ATX connector won't engage properly). Try to start up again.

If the above doesn't work then make sure your PSU is set to the proper voltage input (usually a small red switch on the PSU's rear, not all models have one of these and if it doesn't then don't worry).

If you're still having issues, some motherboards will have a power-on button on them, try pressing this (remotely, use a pen or something), if the mobo doesn't have any such button then bridge the power on connectors on the motherboard with a screwdriver (or something else metal, just be sensible).

Of course, it's always worth checking it's plugged in and turned on at the wall socket too? XD