ASUS P6T Deluxe V2 Power On Issue

Hey all, I'm really hoping you can help me because I've sent back a motherboard once already (had the computer working for 20 days and then it just stopped. After trying different things without success I concluded it was the mobo and sent it back). Anyway, I got the replacement mobo and hooked everything up. When I press the power button it all the lights and fans flash on briefly (less than a second) then it all just turns off, no POST, no BIOS beeps, nothing. I did a bench test so it's not touching any metal. The odd thing is that if I unplug the 12V EATX power cord all of the lights and fans stay on, but it (obviously) doesn't POST or beep or anything. Any ideas?

Thanks

had the same problem, briefly ... when powerbutton on powersupply
is used, just reaplying power seems to fix everything...

What do you mean by reapplying power?

As a side note: I forgot to mention before that I've ruled out the power supply by using a different one. I've tested each of the 3 sticks of RAM individually. I've also used a different video card.

after getting my brand new system I am having the same exact problem. The fans spin for 2 seconds and an led near the DIMM ports flashes and then nothing. Have tried 2 psu so far with the same result and have checked all the power connections and the battery and it still won' turn on.

I have the same problem, i just take out the motherboard battery and put it back in and it works again. im getting sick of this, whats up with asus?