MacBook won't start up !

[akanaan]

My Macbook -core 2due- when I turn in it on keeps black screen and notification light start blinking only within seconds gives me beep sound and remain the same!!
btw, that happens after falls down!
Please advise!

Many Thanks,

 

[simsaladimbamba]

Have you tried any of these steps?

Mac doesn't boot

Resolve startup issues and perform disk maintenance with Disk Utility and fsck

Troubleshooting: My computer won't turn on

A flashing question mark appears when you start your Mac​

Maybe the HDD has been damaged. If you can, boot from an external HDD with Mac OS X on to see, if that is the case.

 

[JediMeister]

The beep, is it a single one or a series of 3? The computer may be failing POST (Power On Self Test), and would seem to suggest an issue with the RAM. Consider re-seating or replacing the chips.