First Built Desktop PC, no video.

Go through and make sure all of your power connecters and ram are connected and seated properly. I worked for dell for years, and 90% of the no video issues i ran into were from cards/ram not seated properly.

If this doesnt work, remove your cmos battery, and leave it out for about 10 minutes, with the system unplugged. Alternately, you can move the clrcmos jumper to the correct pins to clear your cmos(this should be explained in your motherboard manual)

If you still don't get any video, try booting without any ram installed at all and see if that works. If it does, add one stick at a time until it doesn't.

If booting without ram installed doesn't change anything, try the power supply in a different system or try another known working power supply in yours.

If none of these things make a difference, you've narrowed it down to your motherboard or processor. CPU's have a VERY low failure rate, but you might take it out, and make sure there are not any bent pins. If there are, and you trust yourself to do it, you can try to straighten them(when I've had to do this I use a straight pin)

If none of the things listed above change anything, I would RMA the motherboard first, then the processor. Be forewarned, if your CPU has bent pins, they will not take it back.

Edit: One of the first things I should have mentioned, are your motherboard standoffs all installed?

No to the standoffs.

Thanks for the quick reply BTW.

Just make sure you have the right amount of standoffs for your board. If there is a standoff where there isn't a screw hole in your board chances are it's shorted out.