after putting this new rig together using the C51XEM2AA-8EKRS2H NFORCE 590 motherboard from Foxconn, i am experiencing nothing but problems. When I turn on the computer everything turns on inside the case. I do not get a picture on my screen and there is a series of beeps coming from in the case. The LED numbers inside on the mobo are glowing green and say 10 if that means anything. I tried unplugging a bunch of things in case my power supply was the issue, which it doesnt seem to be, but its possible. I checked all of the power supply plug ins and pushed them in.
 
My rig is:
AMD Athlon 64 6000+ cpu
4GB Corsair DDR2 5200 ram
2x BFG 8800 GTS Nvidia Video cards
2 hard drives
1 cd burner
1 dvd burner
 
550 or 600 watt power supply.
 
Again I unplugged everything but the essential components and still it wont work.

check the mobo manual... the series of beeps should be coded by manual
 
jae
mlb

the mobo manual says nothing about beeps. It has no trobleshooting in it at all.

reseat the RAM.  Try just using one stick.  Reseat the GPU.  Search for your MB online and find out what the beeps are.  They use the beeps for a reason.  I know MB books can be shady at best sometimes but their site probally has something about it.
 
might help to say what type of MB you have, i'm sure someone on here is using the same.  Good luck.

Try removing two sticks of ram and boot with two gigs only. The '10' displayed on the board seems to indicate memory controller initialize failed. Also here's a link to a site with error beep codes to help you figure out what your mobo is trying to comunicate  
 
http://www.pchell.com/hardware/beepcodes.shtml

You are using the wrong memory. You should be using DDR2 800 with that processor.
This may not solve your problem though.
When you can get in the Bios, adjust the memory speed and voltage.

Try using one video card instead of the two you have in SLI.
You may have hooked up the monitor to the wrong port.