Hi Again, I did some more research and found that the Mouse Pad on the laptop was shorted and causing it not to boot up, I disconnected the onboard Mouse Pad and it booted up right away. Just wanted to share this in case anyone comes across this problem. I also found out the one Ram card was bad and replaced it. Now everything works. Rick  Rick's Computer Repair
I am working on a 4 GB Inspiron 17 3721 laptop and when I power it on, the screen is black and starts to make 2 clicking noise. Does anyone have an answer to this. I have replaced the mother board, checked the Hard Drive in my Laptop and it works and boots up. I have tried a few things, but still no luck. I have a new 8gb memory card but have not tried it in the laptop with the two beeps, the fan is running at the beginning. It tries to boot up and goes to the two beeps. I do not have the Service Tag or Express number. 
Dell Inspiron 3721 boot problems