My A8N-SLI will not boot up, it won't even beep, all the fans turn on but thats it, i have taken all of the hardware and tried starting it to see if it would beep, but it will not, any ideas?
no boots are an indication a critical component has failed, or is setup incorrectly.
Remove all items that are un-neccesary and run a 'simple' boot.
You will need
Motherboard
CPU
one stick of ram
Video card
Unplug any unneccesary items such as case fans, LED lights, hard drives etc.
CLear the CMOS (see mobo manual for details) by removing the motherboard battery. Wait a few minutes, put the battery back in, connect the PSU power and see if that boots.
Basically what you're trying to do is narrow it down to see what item is causing the no boot scenario - the less parts the better, and its going to help a lot if you have any spares (alternate ram, video cards, etc)