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my macbook pro is running very slow and restarts

6355 Views 8 Replies Latest reply: Dec 27, 2012 3:53 PM by Scot813 RSS
Scot813 Calculating status...
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Dec 24, 2012 10:32 AM

I was working on my 2008 Macbook Pro yesterday and it restarted on its own.  Now, when I log in, it loads very slow and will restart unexpectedly.

Mac OS X (10.6.2)
  • BGreg Level 6 Level 6 (17,500 points)
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    Dec 24, 2012 10:43 AM (in response to Scot813)

    Reset you SMC which can fix power-related issues, and also reset the PRAM (see below). If that doesn't fix it, please post back.

     

    1. Shut down your Mac.
    2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    3. Turn on the computer.
    4. Press and hold the Command-Option-P-R keys before the gray screen appears.
    5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    6. Release the keys.

     

    You might also run the Apple hardware test.  You'll need your original OS X disks to run it.

  • BGreg Level 6 Level 6 (17,500 points)
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    Dec 24, 2012 3:14 PM (in response to Scot813)

    What did the Apple hardware test show?

  • BGreg Level 6 Level 6 (17,500 points)
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    Dec 24, 2012 6:24 PM (in response to Scot813)

    Use your original OS X disks, find the one that says 'AHT Version x.x' in small print on the label. Insert and reboot holding the alt/option key down. Choose the Apple hardware test, and when prompted, choose the extended test. This can take 30 to 60 minutes or more, depending on the amount of memory installed.

  • BGreg Level 6 Level 6 (17,500 points)
    Currently Being Moderated
    Dec 25, 2012 10:43 AM (in response to Scot813)

    Did you perchance try that more than once? With the right disk, it should bring up the AHT as one of the boot options.

     

    An alternative, with the DVD in the system is to boot holding the d key down. This should take you directly to the Apple hardware test.

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