Aw shucks, looks like we're in for some real troubleshooting here.
First step,unplug SATA cable to HDD (we're trying to get a good POST now, not concerned with getting into the OS yet - that should come once we can POST).
Then, remove all ram modules except the one closest to the CPU - try to start then. If that does not work, try a different module in that same slot - go through all of your ram modules one at a time. If during that process, you do get a single beep (good POST) and hopefully a screen to view, continue the process to determine which module(s) is/are causing issues. If you go through all of your modules and still cannot POST, the next step will be to clear CMOS - not hard on your mobo but, see where you get trying single ram modules first.