What kind of RAM to upgrade a 1.25GHz eMac (USB 2)?

Discussion in 'PowerPC Macs' started by madmaxmedia, Mar 14, 2008.

  1. madmaxmedia macrumors 68030

    Joined:
    Dec 17, 2003
    Location:
    Los Angeles, CA
    #1
    Hi all,

    I currently have 2 x 512MB RAM in my 1.25GHz USB 2 eMac, and Leopard is kinda laggy on it. I want to get 2 x 1 GB, but am not sure what RAM to buy.

    I know I can look for PC2700 333MHz SDRAM, but was wondering if newer RAM (DDR2, etc.) is compatible. Sometimes older slower RAM is more expensive since it's no longer made. I just want to find the cheapest upgrade path, if I can get additional performance gains that would be icing on the cake.

    Thanks for any help!

    EDIT- I just found on Wikipedia that DDR2 is not backwards compatible with DDR, and they also have a different pin configuration. So I assume I need to search for DDR desktop RAM?
     
  2. flopticalcube macrumors G4

    flopticalcube

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    #2
    According to everymac, PC2700 DDR-333MHz.

    Looks like you have the max now.
     
  3. madmaxmedia thread starter macrumors 68030

    Joined:
    Dec 17, 2003
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    Los Angeles, CA
    #3
    Apple's max RAM spec is often low, I think they are based on the maximum available RAM sticks at the time. I'll look into it more though, thanks.

    The other thing I noticed is that it is important to buy 'low density' instead of 'high density' RAM. There are a ton of eBay auctions with really cheap prices, turns out they are for 'high density' which doesn't seem to be compatible with the eMac (and many other desktop computers.)
     
  4. flopticalcube macrumors G4

    flopticalcube

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    #4
    I think everymac accounts for that. The early Core 2 Duos only officially support 2GB but, as noted on everymac, you can use 3GB or even 4GB. Hopefully you can go to 2GB.
     
  5. madmaxmedia thread starter macrumors 68030

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    Dec 17, 2003
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    Los Angeles, CA
    #5
    Hmmm...I think you may be right, unfortunately. But thanks for the heads up!

    http://wiki.answers.com/Q/You_have_...for_that_matter_1gig_in_each_of_the_two_slots

    Too bad. I guess it saves me some money... ;)
     
  6. CanadaRAM macrumors G5

    CanadaRAM

    Joined:
    Oct 11, 2004
    Location:
    On the Left Coast - Victoria BC Canada
    #6
    Arrrgh... so many wrong answers, so little time ;)

    Floptical: It ain't a Core2Duo machine

    The answers are in the MR Guide to Buying RAM

    EveryMac is wrong, all USB 2.0 (DDR RAM) versions of the eMac G4 can go to 2 Gb RAM with 2 x 1 Gb DIMMs.

    I would not go eBay on these, I recommend you stick with a reputable seller who guarantees compatibility.
    If you are in the USA, Data Memory Systems has them for $49 each
     
  7. flopticalcube macrumors G4

    flopticalcube

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    #7
    Duhh.. I know it isn't a C2D, I was using that as an example of how everymac knows about unofficial limits to RAM barriers. Looks like everymac needs to update their info on the 1.25GHZ model.
     
  8. madmaxmedia thread starter macrumors 68030

    Joined:
    Dec 17, 2003
    Location:
    Los Angeles, CA
    #8
    Great, I'm back in the game!

    I was wondering why the last eMac rev. would be different in this regard, since it seems practically identical to the USB2 model that I own. The only difference was an upgrade in graphics chip.

    Thanks for the feedback guys. I'll do a bit more research to try to confirm that I can upgrade, will post back if I find anything else.

    EDIT- Here's another post that seems to confirm my eMac can take 2GB-
    http://www.mac-forums.com/forums/showthread.php?t=64631

    EDIT 2- And here's one more thread at Apple.com that seems to seal the deal-
    http://discussions.apple.com/thread.jspa?messageID=5500245
     

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