After finally getting my I/O plate, I put together a system with an ASUS A7N8X Deluxe and Sonata Case. After getting the system assembled, when I turn it on, all the fans come on the LED on the motherboard lights up, but after that, nothing. No beeps, no verbal prompts (a M/B feature I guess), no nothing.

I've done the following:
1. Reset the CMOS
2. Checked all the jumpers.
3. Tried two different video cards and no video card
4. Tried two different sticks of RAM and no RAM
5. Disconnected everything but the CPU (I have to remove the Motherboard to get the CPU out).

Any ideas before I take the whole darn thing apart?

I hope I didn't munch the CPU putting the heat sink on it. Also if it matters the MB was a refurb I purchased from NewEgg.

Thanks in advance.