http://www.tomshardware.com/forum/261145-31-perform-ste...
step 17 is there a speaker connected to the front panel? if not get one connected.
canned diagnostic speaker rant
The diagnostic speaker is the motherboards main diag feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/ho...
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip
https://wesbellwireandcable.com/images/cutwire.png
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant
now there is a speaker boot the system and listen for beeps. if you are getting no beeps, try forcing one. power off the system and remove all the RAM. Boot the system, the speaker should beep like an astro-droid*. if you cannot force a beep code in this manner it has been my experience that the motherboard is toast
*https://i.pinimg.com/736x/bb/b9/7f/bbb97fcaed3e15afce60...