I think I fried my 790i Ultra....

Specs:
E8400 (stock cooler)
Patriot Viper Extreme 1600mhz 7-7-7-20 (2x2 GB)
EVGA 790i Ultra mobo
Cooler Master 1000w silent pro
Seagate Barracude 7200.12 1TB 

Problem:
My computer will power up, however the screen stay black, but all of the lights on the mother stay lit. The HDD light on the front of my case stays a solid green and all of the LED fans power up along with the CPU fan.

What I think might have happened:
I had moved my case from my house to my friend's place for a LAN party but its was -5 out, would the transportation/cold air wreck something on the inside?

Alternate Theory:
My friend's house is a century home..perhaps the plugs aren't strong enough to handle the 1000w needed to power everything up (my mouse LED's done power up either) because my tower had worked previously when it was at my house.

I'm really worried about it, since I purchased it a couple of months back and didn't register it because I didn't have internet at the time, and if it is broken I fear that I won't be able to RMA and my $210 had gone to waste :(

Can anyone help? any theories? 

what codes are you getting from your mobo ? Does it finish posting ?

   
 
  
  

Try reseating your ram.  I've experienced things like this long ago when I used to transport my computer for lan party's, and when I'd get back would have issues at times.  Things like to wiggle a bit during the move and sometimes get unseated.  Should try and reseat your video card as well.  More than likely something just got a bit loose during the move.