New System No Boot

Hey everyone, I just finished building a new system. Everything is new. After hooking it all up it booted and I was able to get into the bios several times. After a few minutes though the system would just shut down unexpectedly, now I can power the system up but I get no post, no beeps, nothing. Just spinning fans and that's it. Also once the system is powered on I cannot shut it down with the soft power button. Only the switch on the power supply shuts it down.

Here's the particulars:

Intel Pentium D 930 processor
Gigabyte GA-8N-SLI Royal MB
2x1 GB Patriot ram
GeForce 6600GT PCIE video card

Troubleshooting I've tried so far.....
Test: Pulled the ram to see if bios beeped due to no ram.
Result: No beep

Test: New Power supply
Result: No change in behavior

Test: Jumpered the CMOS Reset for 1 min with power unplugged.
Result: No change in behavior

Test: Run the system for awhile occaisionally checking the Northbridge and CPU for heat
Result: No heat

When I first ran the computer the Northbridge was getting extrememly hot and I touched the heatsink on it and burnt my finger! I pulled the 4 pin power to the MB to test the voltage on it and it was fine, plugged it back in, now nothing!

Any ideas? Thanks

Codevyper

I think your motherboard may be damaged in some way. If you have just bought it, surely your 'board will still be under warranty ? If so, I would exchange it for a new one.

Found out what the problem was. Gigabyte has 5 different GA-8N SLI mobos to choose from. I was running the GA-8N Royal with a 930 D Pentium dual core processor. The 9xx series cpus are only supported in the GA-8N SLI (standard) rev 1.1 or higher (NOT rev 1.0) and the GA-8N SLI Quad Royal. Every other GA-8N SLI as of this writing does not support the 9xx series cpu's. Check their website for CPU compatibility lists.

Codevyper