The LED light could be yellow as long as there is a light. Try only 
connecting power supply, motherboard, CPU with heat sink & fan, RAM, and 
monitor (assumes using on- board video). If a video card is needed for 
the monitor, do not install the card and monitor. This configuration 
should get you through the initial POST and give a single beep when 
completed. If there are other series of beeps before the POST completes, 
the number of beeps indicates what the problem is and depends on the 
type of BIOS. If the POST does not complete and there are no beeps, the 
motherboard could be bad out of the box which is not unheard of. If the 
POST does complete, then start adding on the other components.

I hope this helps

Tom

Mike wrote:
> Well I tried everything and the fans are working, its not the power supply, BUT no green light only yellow light, are their any bad DVD ROMS, HD etc or connections
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