Q: My computer started making a 3 beep noise every 5 seconds and the scren turned all white, I turned off and unplugged it  ... My computer started making a 3 beep noise every 5 seconds and the scren turned all white, I turned off and unplugged it but when turned on again it still makes the 3 beeps and the screen still white , what is wrong with it ? more
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Helpful answers
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May 5, 2015 11:51 PM in response to isabelitasby thunderzzz,Usually it indicates failed memory or memory slots. Power On Self-Test Beep Definition - Part 2 - Apple Support
You may try resetting SMC Resetting the System Management Controller (SMC) on your Mac - Apple Support
If this will not help I would recommend you to go to the Apple Store for further diagnostics.
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May 6, 2015 7:57 PM in response to thunderzzzby isabelitas,Thank you thunders , I tried it and it doesn't work. I will call Apple to take an appointment and take my Mac there .