14 Replies Latest reply: Dec 2, 2012 6:29 AM by OGELTHORPE
Narsov Level 1 Level 1


It is the third time that my MacBook Pro is blocked (no mouse or keyboard) and that at the same time an alarm sound beeping like an ambulance occurs...

I wonder why and I'm afraid of what could append next.

Do you know what this means ?

MacBook Pro (13-inch Late 2011), Mac OS X (10.7.4)
Solved by OGELTHORPE on Dec 2, 2012 2:42 AM Solved

Alancito has provided the appropriate Apple support article for the Apple Hardware Test.  For your MBP, a disk is not necessary.  Press and hold down the D key when you start your MBP.  It will do no harm to your machine.



Reply by OGELTHORPE on Dec 1, 2012 8:44 AM Helpful

Run an Apple hardware test.  The only audible alarms that I am aware of indicate RAM problems.



Reply by Alancito on Dec 2, 2012 1:35 AM Helpful

Narsov wrote:


I have tried to find an Hardware Test on my Mac but it seems that there is not anyone available

This Apple doc may help:


Intel-based Macs: Using Apple Hardware Test


...Found by searching here:





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