Help RAM is missing after firmware update

Discussion in 'Mac Help/Tips' started by macatwork, Sep 27, 2002.

  1. macrumors newbie

    Jul 17, 2002
    2 of my rams are missing after I updated the firmware on my G4 500 running OS 9. PLEASE HELP!!
    How do I get it back. I have 1GB of ram installed but the system only sees 512 of ram.
  2. macrumors 68020


    Dec 3, 2001
    this was an issue noted over 18 months ago with an older firmware update.

    If you got if from crucial or someone who guarantees compatability then you should just phone the vendor and request some replacement DIMMs. If you got cheap RAM from some PC dealer you might have to buy more RAM from a more reputable firm like Kensington, Crucial or Just Rams and then put you're current RAM on eBay as generic PC 100 in the PC section to get some of the money back.

    Here's some links for sites discussing the issue :

    Low End Mac - Article 2001.3.25

    Mac Central - Article 2001.4.4
  3. thread starter macrumors newbie

    Jul 17, 2002
    So is there any sort of utility that can help me out? I remember someone on this forum provided me with a utility that helped.
  4. macrumors G5

    Sun Baked

    May 19, 2002

    Yesterday you had 768MB working today it's 512MB, why all the threads.

    Plus, you say that ARN helped you out before for the same/similar problem before. Yet you say first post, and are currently at 5...

    Why all the threads on the same topic?

    Why the multiple user names/personalities?
  5. thread starter macrumors newbie

    Jul 17, 2002
    sorry for the multiple post. My PM 800 is my home machine and the PM 500 is my work machine. I had this issue awhile back and someone in this forum, I think it was a moderator or admin(can't remember) that helped me out. The situation now is that I installed more ram to the machine at work and updated its firmware. After that 2 rams weren't recognized by the Mac.
  6. macrumors G5

    Sun Baked

    May 19, 2002
    Under Apple System Profiler, you should be able to see which memory slot is occupied and recognized and which aren't.

    What speed/type of memory is it...

    You'd definitely want to get satisfactory RAM installed in the machine, or you'll most likely end up with more problems when you switch to OS X.

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