Ram for MDD

Discussion in 'PowerPC Macs' started by Mac OS X User, Oct 8, 2011.

  1. bizzle macrumors 6502a

    Jun 29, 2008
    I tried multiple 1GB PC3200 modules in various MDDs and they all caused the machine lock up in sleep. I'd recommend 4x 512MB.
  2. ThunderSnake macrumors 6502

    Jul 23, 2010
  3. Mac OS X User thread starter macrumors newbie

    Jan 24, 2011
    I shut this machine down at night so locking up in sleep doesn't matter.

    1) Would this work
    2) Would this make any difference to the reliability of this machine

    -Mac OS X User:apple:
  4. ThunderSnake macrumors 6502

    Jul 23, 2010
    No, it will not work. The memory in your link is high density. Your Mac requires low density. Also, it's best to use 4 512MB modules.
  5. SmurfBoxMasta macrumors 65816


    Nov 24, 2005
    I'm only really here at night.
    This is 1000% correct !

    You can NOT use high density ram, and 512MB is the max size per stick in that era of ppc macs............

    been there done that :) :)
  6. aednichols macrumors member


    Jun 9, 2010
    Actually, there have been reports of 2 x 1 GB configurations working just fine, though obviously not the OP's, since it is high-density.

    Also, I have successfully used ECC DDR in MDDs - it works, and in many cases it's cheaper than regular DDR because there's less consumer demand for it.
  7. ThunderSnake macrumors 6502

    Jul 23, 2010
    Yeah, same here. I have a 1GB module (low density) in one of my machines and it works fine. I suspect (but am not certain) that the folks who report problems are using high density. Just in case, I normally suggest trying a 1GB module only when someone has a faulty memory slot. Of course, if you already have the ram, there is no harm in trying it. If you're making a purchase though, it's best to stay safe with something that you know will work.

Share This Page