MBP won't run Activity Monitor, other programs, find external after memory upgrade

Discussion in 'MacBook Pro' started by johlinco, Dec 21, 2008.

  1. johlinco macrumors newbie

    Joined:
    Dec 21, 2008
    #1
    I have a 15-inch 2.0 Ghz MBP that originally had 512 Mb of Ram. I just upgraded to two Gb but when I went to confirm that that new memory was in by checking in the Activity Monitor, the program would not open. I also tried to connect my external hard drive but its icon never appeared on the desktop. When I removed the external hard drive, I did NOT receive a message telling me that I had ejected it incorrectly which was something that I also found interesting. The new memory sticks are:

    mushkin 1GB DDR2 667 (PC2 5300) Model 971504A.

    The external is a Western Digital 500 Gb that I have never had any problems with.

    What have I done? Someone help me.

    Thanks.
     
  2. darwinian macrumors 6502a

    darwinian

    Joined:
    Jan 4, 2008
    Location:
    In R4, more or less
    #2
    Is it reversible? When you put the original RAM back, what happens?
     
  3. johlinco thread starter macrumors newbie

    Joined:
    Dec 21, 2008
    #3
    Should have mentioned that. When I put the old memory back in the problem still exists.
     

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