Flickering Screen Issue (Early 2008 Macbook)

Discussion in 'MacBook' started by mt6272, Mar 20, 2012.

  1. mt6272 macrumors newbie

    Joined:
    Mar 8, 2012
    #1
    I recently upgraded from 2gb to 6gb ram.
    Now, my macbook has done this twice in the two days since upgrading:

    http://youtu.be/HHTyQ9xcNq0

    When it happens, my macbook is completely unresponsive. I must hold down the power button to turn it off- when it books back up, everything works fine again.

    Anyone know what I can do to fix this problem? (Hopefully besides removing the ram which has really sped up my macbook otherwise)
     
  2. foo0110 macrumors newbie

    Joined:
    Oct 21, 2009
    Location:
    Malaysia
    #2
    Is the RAM compatible with your macbook? Try using only one RAM to see whether problem still there, swap to verify each of the RAM.
     
  3. logana macrumors 65816

    logana

    Joined:
    Feb 4, 2006
    Location:
    Scotland
    #3
    Agreed - looks like a faulty ram stick - as above suggestion run with only one stick of ram in the machine and work out which stick is faulty (though could be both...)
     
  4. mt6272 thread starter macrumors newbie

    Joined:
    Mar 8, 2012
    #4
    Sound advice - will give it a go.
    Worst comes to worst I have a liberal return policy to fall back on.
     
  5. mt6272 thread starter macrumors newbie

    Joined:
    Mar 8, 2012
    #5
    I think I have isolated the problem.

    I first switched the modules. This worked well for a little while. Then, my macbook shut down in the midst of me running a few safari browsers. It started to blink with the front led and make a loud noise - 3 beeps/ blinks in succession, then a pause... repeating over and over.

    I tried running just the 4gb module in each slot. No luck. Then the 2gb module - now my macbook works. It seems like a case of plain bad ram. Will be returning. Thanks for the help folks!
     
  6. logana macrumors 65816

    logana

    Joined:
    Feb 4, 2006
    Location:
    Scotland
    #6
    3 beeps = no good banks (of ram)

    The 4GB ram is not PNY by any chance ?
     
  7. mt6272 thread starter macrumors newbie

    Joined:
    Mar 8, 2012
    #7

Share This Page