Worked great for a few months, now when I turn it on all I get is initializing.

Power On:
All lights light up
All lights turn off, and then back on
Rinse
Repeat
Till hell freezes over
And I cry myself to sleep.

My board was slightly underpowered, I am afraid I may of blown it. Is there something I can do to test this without buying a replacement board and end up running into the same issues and unable to RMA? How is ASUS on returns and RMAs? I doubt I have everything that came with the mobo. Would they take just the MoBo and give me a OEM?

I'd rather check the PSU.

PSU tested to be working in other systems. Working PSU tested to not work in mine.

CPU fan plugged in and working correctly?

Yup, everything kicks on and spins fine.

Give us the brand and model type please of the PSU, not only that, also your whole setup. Did you try to start up your system without any thing connected to your mobo except RAM and CPU.

Full System Specs:

Asus MVP Deluxe
AMD Athlon XP 3700+
1g Corsair Value Select
ATI x1600xt
160g Generic Lable IDE HDD
450w (20 pin) Thermaltake PurePower Butterfly W0022 (Desc.)
2x NEC DVD+/-RW
1 fan controler (4 fans)
1 3.5" Floppy drive
1 Cold Cathode lighting tube

I have tried to boot with nothing hooked up but the CPU, RAM, and a PC Speaker to listen for the Post, but it won't even do that. When I pull everything except the Video card, I don't even get a video BIOS from my ATI card.

Dead mobo or CPU.

Well, dead CPU is not likely, but the mobo could be indeed.

CPU is fine. I tested it in another comp. Booted up no problem.

I already ordered a new MoBo, DFI LanParty ATI Crossfire

Had some spoty reviews, but it was only $60, about 1/2 off of normal price, and most of the bad reviews were from Rev 01 and 02. Rev 03 has been out a while, and 04 just came out. And supposedly the newest BIOS update is available, and fixes alot of the issues.

We'll see how it preforms against my old mobo. I got a new PSU too, 550w 20+4 pin. AeroCool 550w PSU.

On a side note, does anyone want to buy my dead mobo and scrap it for fans/parts? lol