RAM in Blue and White

Discussion in 'Mac Basics and Help' started by benyaimin, Jul 6, 2006.

  1. benyaimin macrumors member

    Jan 19, 2006
    Could you use 512MB or 1GB sticks of PC100 RAM in a G3? Apple's site says it only supports 1GB w/4x 256MB.
  2. iPhil macrumors 68040


    If Apple says that G3 system will only hold 4x256MB sticks totally 1GB then the 512MB or 1GB sticks won't work ..
  3. CanadaRAM macrumors G5


    Oct 11, 2004
    On the Left Coast - Victoria BC Canada
    No, absolutely not.

    The memory controller of the B&W G3 and the Yikes G4 cannot recognize high density modules. In fact, they won't recognize most modern 256 Mb modules; the 256 Mb module has to be made with 16 low density chips in order to work.

    Make sure you choose modules from a reputable vendor who tests and guarantees compatibility with the G3

  4. livingfortoday macrumors 68030

    Nov 17, 2004
    The Msp
    You might be able to use the 512MB ones, but they'll only show up as 256MB to the computer. My Powerbook G3 does this with larger RAM sizes than it can take.
  5. dpaanlka macrumors 601


    Nov 16, 2004
    That's not always the case. I have a 512 stick in my iMac G3, which only supports 256mb sizes according to Apple, has two PC100 512 sticks in it, giving it 1gb. Also, the PowerBook G3 Wallstreets were listing as only being able to handle 192mb of RAM, but everybody that owns one knows it can go up to 512. Also, I have a Power Mac 8600 with 8 sticks of 128mb, giving it 1gb of ram, which needless to say, didn't exist in 1997. So Apple's specs aren't always final. But thats not to say that all machines are like this. It's best to ask people who have actually done it themselves.

    Other World Computing's memory pricing page also shows you what they test the machines to be capeable of handling. That's usually a pretty good resource as far as I can tell. http://eshop.macsales.com/shop/memory/ Also be sure to search on google, or ask other members who own blue & white G3s.

    According to them, the Blue & White G3 can only address as high as 256mb sticks.
  6. Makosuke macrumors 603

    Aug 15, 2001
    The Cool Part of CA, USA
    Apple does occasionally fudge on their specs, but more often than not they're telling the truth. In some of the borderline cases, it's not even consistent--I know that some very early iMacs support larger sticks, but other apparently identical models don't. They changed the memory controller (or the way it was programmed) somewhere through the run, so it's basically hit-and-miss.

    Either way, that's the beauty of a decet vendor who guarantees Mac compatibility with specific models--they'll tell you what it'll ACTUALLY support, and if for some reason they're wrong you'll get a refund for their mistake.
  7. dpaanlka macrumors 601


    Nov 16, 2004
    Yeah OWC gives all of their RAM a lifetime warrantee too, which is nice.
  8. disconap macrumors 68000


    Oct 29, 2005
    Portland, OR
    Ok, first off, the imac controllers are different. If you check the mac site, the later imac G3s can hold up to a gig, yet they only have two slots. So they will run 512s...

    Anyway, the maximum RAM a G3 b/w can handle is 1gig. And CanadaRAM is right (as he always is with RAM questions), I am yet to find a 512 stick that works in my b/w. Good luck if you decide to, but honestly I'd advise taking the advice in this thread and only buy those sticks if you have another machine you can use them in or you can resell them/return them.

    And btw, I'm personally yet to find a 1gig PC100/133 stick that works in a G4 tower, much less a G3.

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