Screen will not come on and the laptop just beeps three times and then pauses then three beeps. Any suggestions?

Having trouble with my MAC Book Pro, when I turn it on the screen does not come on and the laptop beeps 3 times and pauses and beeps 3 times again continuously.

Three beeps indicates a RAM problem.  Take the RAM modules out, clean the contacts with alcohol and install them.  Make certain they are properly seated.
If you have installed new RAM reinstall the original RAM.
Ciao.

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