Solved PC is not booting after changing mother board

Today I brought a New Mother Board (ASUS M5A78L-M LX) for My PC. Then onwards my PC is not booting. It is sowing My Processor Model, RAM, Hard Dislocated etc on the top and showing some thing like press 4 for Activation F8 for Bios Popup and CTRL+F2 for flash bios. And at the bottom it is showing a message as it is going to shut down in 15 sec and Turning off. It is also not opening bios settings when I'm pressing DEL key not only that it's not responding for any key except Flash Bios Key CURL+F2 it's showing.

As I mentioned above my new Mother Board is ASUS M5A78L-M LX old one I used was ASUS M2N68-AM plus. My processor is AMD X2 440 triple core processor, I've installed 2GB DDR3 Ram and segate 500 GB serial ATA hard disk. This is configuration of my PC can any one help me in solving this issue.


I'm also thinking to upgrad my RAM to 6 GB can I install 2+4 GB on my board?

IF what you're trying to do is plug an old hard drive into a new motherboard -- and expecting it to boot OK -- that is very unlikely to happen because the new motherboard is likely to have very different hardware and need very different drivers.

If this is what you're trying to do -- you need to tell us.

Mark got that right however ive found sometimes using the same brand motherboard will just take it anyhow,,, you should however go back to your old motherboard set up (before changing things around how you have it now) and do this http://www.sevenforums.com/tutorials/149969-ssd-install-transfer-operating-system.html
Then try switching back to the new motherboard and hope it works,, if your using a USB keyboard its possible that USB keyboard is disabled in the new bios,, you will need to get into the bios on the new board before booting so you can set up your boot order and other things like making sure that usb keyboards are enabled.
Good luck!

Thank you guys for your replies. My problem is solved now. I just Googled for posts of people who are using same Mother Board and faced the similar problem. Finally I got the right solution in Asus's Official forum itself. I connected my Front panel USB pin to wrong panel, so mother board got some grounding problem and was behaved like that, now after removing that, my mother board is working fine. Thanks again for your replies...