Computer doesn't power up

[FatherChesz]

Hi guys, I've just transplanted my system into a new case and I'm hoping for some help.

I'm running an EVGA 122-CK-NF63 mobo (Nforce 680i)
Core 2 Duo E6750
2 GB Crucial Ballistix DDR2 PC26400
XFX GeForce 8800 GTX
Creative X-Fi Fatal1ty Edition PCI sound card
Linksys WMP54g Wireless

All on a Corsair HX620 PSU

It was running fine in an old server tower I had, but it was a total pain to open to make any adjustments. I've got everything installed correctly, and double checked my work with your sticky guide. If I connect the power switch, it won't do anything. If i use a paper clip to jump the pins, the fans and CPU cooler light up and turn for a fraction of a second, then it all goes dark again. It won't do anything else unless i power off the PSU and start it up again, at which point it will again light briefly and then stop. I've reset the CMOS jumper and removed the battery for a few minutes with no success. The CPU fan is connected, the board is grounded properly, all the cards and RAM are tight in the board. I'm at a loss. Help!

EDIT: I was playing with the power switch and it does the same thing as jumping the pins, power for a fraction of a second.

 

[FatherChesz]

Could REALLY use some help...please?

 

[shortstuff_mt]

Sounds like you have a short somewhere. Here's a good place to start:

http://www.tomshardware.com/forum/261145-31-build-post-checklist#t1899149