Problems began when I pulled the retail i5 750 HSF for a Coolermaster 212. I was then getting the same symptoms I am now (runs for 3-4 seconds, no POST or beep, resets). I pulled the board from the case, put the retail HSF back on, and tried booting with nothing plugged in except fans/switches/LED's, video card and RAM. It starts to boot, but doesn't even give a POST beep before it resets. It will go on in an infinite loop until I cut power. I also tried booting with the edge of the board resting on my hand so nothing else was touching it..so it's not grounding out on anything.

The only thing I found so far was one pin out of place in the processor socket, and I put it back so everything looked like it would be fine. I'm at a total loss..RMA the board?

Blah this is not what I wanted to be doing tonight!

Edit: I submitted an RMA request. **** I wanted to game tonight.

That sucks. Atleast you can RMA it.

I left the CMOS battery out overnight and now the damn thing boots.

WTF.

RMA it anyway.

They say if it tests working the RMA will be denied.

Make sure it doesn't work then. Clearly something is wrong with it, it shouldn't have done that.