RAM upgrade

Discussion in 'Mac Basics and Help' started by cywinstanley, Jul 4, 2006.

  1. cywinstanley macrumors newbie

    Joined:
    Jul 4, 2006
    Location:
    London
    #1
    Hi all. I'm wanting to upgradge the ram on my G4 powerbook 1.67GHz and am a bit stuck.

    It currently has 512MB in one of the slots and in system profiler it reads :

    SODIMM0/J20STANDARD:

    Size: 512 MB
    Type: DDR2 SDRAM
    Speed: PC2-4200S-444
    Status: OK

    I wish to install another 1GB on top of that. I have gone through all of the steps on Crucial.com for finding the appropriate ram for my computer. on the page ( http://www.crucial.com/uk/store/lis...k G4 1.67GHz (15-inch Display) DDR2&submit=Go ) there are two options for 1GB chips. Would either of them be incompatable with the exisiting chip I have, or would it be advisable to get one over the other?

    How they differ is one is DDR2 PC2-4200, the other DDR2 PC2-5300, and one is DDR2-533, while the other is DDR2-667. They are only £10 different in price so I'll get whichever one is faster.

    Thanks!
     
  2. dmw007 macrumors G4

    dmw007

    Joined:
    May 26, 2005
    Location:
    Working for MI-6
    #2
    I would go with the RAM that is already installed in the computer (the DDR2 PC2-4200). Your PowerBook G4 may recognize the faster types of RAM but will probably only operate it at the DDR2 4200 speed.
     
  3. craigatkinson macrumors regular

    craigatkinson

    Joined:
    Jan 31, 2006
    #3
    I bought Ram from crucial and went with the faster piece and when I installed the Ram it showed up in my system profiler as a slower piece of Ram than was originally installed in my powerbook. I sent it back and got the matching piece and I haven't had any problems since. The moral of the story...go with the matching Ram. :)

     
  4. cywinstanley thread starter macrumors newbie

    Joined:
    Jul 4, 2006
    Location:
    London
    #4
    Gentlemen, thankyou so much. I shall go with the DR2 PC2-4200, the matching RAM.

    Ta.
     
  5. dmw007 macrumors G4

    dmw007

    Joined:
    May 26, 2005
    Location:
    Working for MI-6
    #5
    Good choice- it is not worth it to buy some RAM that may or may not work on your computer. :eek:
     

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