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  1. #1


    Member Since
    Aug 25, 2007
    Posts
    2
    Adding memory to an iMac G4
    My monitor has quit for the 2nd time on this desklamp so a techy friend of mine removed the monitor for me. I am now using a new external monitor & using the desklamp computer as sort of a mac-mini.

    So she showed me the 512MB stick of DR2100 memory that is installed just underneath the cover of the base.

    My question -- can I pull out that 512MB stick of memory & replace it with a 1024MB stick of DR2100 memory? newegg.com has it priced for $31.99

    Should I also upgrade the memory installed right to the motherboard?

    The reason for my question is that I would like to get this computer to run a little faster ... and upping the memory might be the most economical fix. Any & all suggestions are appreciated.

    This is some of the info about my iMac
    Machine Name: iMac
    Machine Model: PowerMac6,1
    CPU Type: PowerPC G4 (3.3)
    Number Of CPUs: 1
    CPU Speed: 1 GHz
    L2 Cache (per CPU): 256 KB
    Memory: 768 MB
    Bus Speed: 133 MHz
    Boot ROM Version: 4.5.8f1

    Running Mac OS 10.4.11

    TIA ---

  2. #2

    pigoo3's Avatar
    Member Since
    May 20, 2008
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    36,520
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by mbusboom View Post
    My monitor has quit for the 2nd time on this desklamp so a techy friend of mine removed the monitor for me. I am now using a new external monitor & using the desklamp computer as sort of a mac-mini.

    So she showed me the 512MB stick of DR2100 memory that is installed just underneath the cover of the base.

    My question -- can I pull out that 512MB stick of memory & replace it with a 1024MB stick of DR2100 memory? newegg.com has it priced for $31.99

    Should I also upgrade the memory installed right to the motherboard?

    The reason for my question is that I would like to get this computer to run a little faster ... and upping the memory might be the most economical fix. Any & all suggestions are appreciated.
    Your computer has 1 user accessible ram slot.

    Check this out:

    Apple iMac G4/1.0 17-Inch (Flat Panel) Specs (iMac 17" 1 GHz - M8935LL/A) @ EveryMac.com

    As far as the "newegg" ram you mentioned...you better be sure it is compatible with Macintosh computers.

    Other World Computing (a store I highly recommend)...sells 1 gig sticks of ram that you need for $42.99:

    1.0GB (1024MB) PC2700 DDR SODIMM 200 P... (OWC2700DDRS1GBA) at OWC

    OWC is usually very competitive with their prices...so with the $11.00 difference between Newegg & OWC...it's best to make sure the Newegg ram is Mac compatible. PC ram is not always compatible with Macs.

    Hope this helps,

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3

    Mac SK's Avatar
    Member Since
    Oct 21, 2006
    Posts
    1,517
    Never mind... saw it was a 1gig snowball. You may need to replace the internal ram to reach full capacity.

  4. #4

    pigoo3's Avatar
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    May 20, 2008
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    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by Mac SK View Post
    Never mind... saw it was a 1gig snowball. You may need to replace the internal ram to reach full capacity.
    Yes I'm guessing you were thinking about the same thing I was going to mention in my previous post....that this iMac G4 is supposed to be capable of being upgraded to 2 gig of ram...but one of the slots is not very easy to access.

    The user accessible slot is 200 pin ram...and the "less" user accessible slot is 184 pin ram.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #5

    Mac SK's Avatar
    Member Since
    Oct 21, 2006
    Posts
    1,517
    Quote Originally Posted by pigoo3 View Post
    Yes I'm guessing you were thinking about the same thing I was going to mention in my previous post....that this iMac G4 is supposed to be capable of being upgraded to 2 gig of ram...but one of the slots is not very easy to access.

    The user accessible slot is 200 pin ram...and the "less" user accessible slot is 184 pin ram.

    - Nick
    Right On Dude! Some folks dont know there a limit on the user slot.

  6. #6

    Collin Bl's Avatar
    Member Since
    Apr 07, 2009
    Location
    Napier NZ
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    3,303
    Specs:
    27 iMac+Thunderbolt, iMac 20, 2TB dual TC, AppleTV, iPh4S
    Quote Originally Posted by mbusboom View Post
    My monitor has quit for the 2nd time on this desklamp so a techy friend of mine removed the monitor for me. I am now using a new external monitor & using the desklamp computer as sort of a mac-mini.

    So she showed me the 512MB stick of DR2100 memory that is installed just underneath the cover of the base.

    My question -- can I pull out that 512MB stick of memory & replace it with a 1024MB stick of DR2100 memory? newegg.com has it priced for $31.99

    Should I also upgrade the memory installed right to the motherboard?

    The reason for my question is that I would like to get this computer to run a little faster ... and upping the memory might be the most economical fix. Any & all suggestions are appreciated.

    This is some of the info about my iMac
    Machine Name: iMac
    Machine Model: PowerMac6,1
    CPU Type: PowerPC G4 (3.3)
    Number Of CPUs: 1
    CPU Speed: 1 GHz
    L2 Cache (per CPU): 256 KB
    Memory: 768 MB
    Bus Speed: 133 MHz
    Boot ROM Version: 4.5.8f1

    Running Mac OS 10.4.11

    TIA ---
    I would have thought that 768 is quite satis for 10.4.11 unless you have heaps of apps open and or heavy duty video work. Will you really get a noticeable speed improvement over what u have - might be better to save the $$ for future upgrade from G4

  7. #7


    Member Since
    Aug 25, 2007
    Posts
    2
    The user accessible slot is 200 pin ram ** per your post...

    so if I pull that ram ... can I install?
    1GB(1024MB) 200 Pin PC2700 (333MHz) DDR SDRAM SO-DIMM

    and if I get really ambitious ...
    the "less" user accessible slot is 184 pin ram
    I could install:
    1GB PC2700 DDR 333MHz CAS 2.5 184 Pin DIMM

    You got me a little confused

  8. #8

    Mac SK's Avatar
    Member Since
    Oct 21, 2006
    Posts
    1,517
    It has to work out to a total of 2 gigs.

  9. #9

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
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    Posts
    36,520
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by mbusboom View Post
    The user accessible slot is 200 pin ram ** per your post...

    so if I pull that ram ... can I install?
    1GB(1024MB) 200 Pin PC2700 (333MHz) DDR SDRAM SO-DIMM

    and if I get really ambitious ...
    the "less" user accessible slot is 184 pin ram
    I could install:
    1GB PC2700 DDR 333MHz CAS 2.5 184 Pin DIMM

    You got me a little confused
    That would be my understanding.

    If you want to keep things less confusing...just install 1 gig into the 200 pin "user accessible" slot.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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