So my video card fried out on my last computer and it was an AGP so i thought well hell now is a better time then any to upgrade to PCI express and just get a nice new mobo cpu and everything else. So i start doing my homework and decided to get a AMD 64 x2 slot a2 or whatever processor 2.0 ghz. Then i planned on gettin a nice video card so i purchased a evga 7900 pci express card, then heres where i think i made the mistake. I purchased a open box ASUS M2N4-SLI Socket AM2 NVIDIA nForce4 SLI ATX AMD Motherboard i read the reviews it seem to have its problems and negative reviews but nothing bad. I get it in and find out my old ram doesn't fit it so i buy some new 240 wintron i think ram 2g's hook it all up it boots then shuts right back off after less then 2 seconds. Well it has a 24 pin power supply hook up and mine was only 20 so thinking that maybe that was the problem i but a nice Antec 2.0 500w power supply which let me tell you is super QUIET. I hook that up and still the same thing. So anyone have any suggestion i checked all my wires and everything yet nothing. I get no beeps no warning beeps nothing is posting its just bizarre. I think the mobo was DOA espically since it was open boxed. Strange thing was i took out the cpu and turned it on and it just kept running never shut off. Ok so anyone have any suggestions.