No video on new computer

[looserwhoboughtadellxps400]

Okay, so I just built a new system with Led fens and the whole 9 yards. I had a used AM2 motherboard lying around and I put that in the case, idk where it came from. Then I bought a new PSU, CPU a new Graphics card and some good memory. I put this all together and everything turned on and looked like it was running smoothly. This all was good UNTIL I plugged the darn thing into my monitor. I cant get video from anything, I tried different graphics cards and even the on-board video. I tried clearing the BIOS with no success and there aren't even any beeps. Once again it sounds and looks like everything is okay. Then I also noticed that when I try to turn off the computer with the power button, the CPU fan turns off but nothing else does. What the heck is the problem???!!??

 

[mshaw]

Have you got some details on the board, mem, GPU its hard to diagnose without that

 

[looserwhoboughtadellxps400]

The board has an Acer sticker on it so I'm assuming it came from an Acer system. The model number is MCP81PM-AM, It is socket AM2. The memory is 2GB of 667MHZ DDR2.
And my graphics card is an ATI Radeon 4850. All of these components (besides the motherboard) came from a working pc. My thought is that the motherboard is bad, but It's too hard to tell.




UPDATE- I tried taking everything out and putting it together on some cardboard, this didn't help at all.