iBook G4 not recognizing RAM

Discussion in 'PowerPC Macs' started by nhallmark, Jan 6, 2007.

  1. nhallmark macrumors 6502

    Nov 8, 2006

    I pulled a 256mb stick out of the girlfriend's dead PC laptop and it fits in my 14" iBook G4 and when I originally put it in, "About this Mac" said I had 768mb, meaning it recognized the new RAM, now its about three weeks later and "About this Mac" says its 512mb again.

    So, I pulled the RAM out, put it back in, it recognized it for about a day and now its back to saying 512mb.

    I know when you buy RAM new, it comes with a CD(usually) to scan your computer, so is that the problem and if so, is there a download of the software online?

    If not, then any advice on what to do or what the problem might be would be greatly appreciated.:)

    Thanks for your time,

    Edit: Im running 10.4.8, if that helps.
  2. Jiddick ExRex macrumors 65816

    Jiddick ExRex

    May 14, 2006
    Roskilde, DK
    First of all: did you check that the iBook support that kind of RAM?

    Second of all: macs are very very grumpy about what kind of RAM you put in them, so you need to make sure the RAM is guaranteed compatibility. Since you have provided us with very little info about the kind of RAM you took from the other laptop, I will go out on a limb here and say that the RAM is incompatible.

    Check compatible types of ram here: www.crucial.com or www.kingston.com
  3. nhallmark thread starter macrumors 6502

    Nov 8, 2006

    Yeah, crucial says its pc2700 and the stick I put in is pc2100.

    Oh well.

    Thanks for your help,

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