If you don't have the money to have it repaired, then you'll need to be qualify to do that repair work.. It's highly possible you've detached some wiring or damaged the motherboard to the point that it needs soldering or replacement of parts.. That's not an easy thing on a motherboard, (impossible if you ask me) and I always choose to replace the board.. First, you can open the case and check to see if any connectors have pulled out of the board.. Reseat them to be sure. Make sure the motherboard is correctly attached to the case.

After that, it becomes a troubleshooting expedition to find the location of the damage.

Hope this helps.

Grif