There are 100 (PLUS) reasons that can cause "no (or few) signs of life"
Most likely? ... Did not hook up the CPU pwr connector (in addition to the 24 pin).
next up? ... Standoffs shorting the mobo ... or no standoffs at all.
I could go on and on and on ... etc .
This checklist is your VERY BEST chance of getting up and running.
Go thru the whole list ... DO each step ... TAKE NOTES (written) ... Be VERY deliberate and methodical.
We are right here ... but that list gives us a "METHOD" and a "MAP" so we can eliminate, divide, and conquer (or isolate) the fault.
Here ya go ... get a pencil and some paper ... Write down all knowns ... make no assumptions.http://www.tomshardware.com/forum/261145-31-perform-steps-posting-boot-video-problems
If we are not systematic (methodical) .... well ... could be in limbo for a long time !
= Al =