8 Beeps from my dell inspiron n5010

Hi

I have a dell inspiron n5010 laptop. i bought it 3 years back.  I got a problem with that, it is getting 8 Beeps. and i took that to a repair shop they worked on it and took 1500/-rs . and when i brought it home, it worked normally for some hours. after that i got Blue screen error. i opened it in safemode. and restarted it. again i got the same problem. 8 beeps

Please provide me the solution.