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  1. #1
    jp_tix
    Guest
    RAM - need expert help
    Hi,

    I'm buying a 1GB memory stick for my Powerbook.
    This is the model:

    Apple*PowerBook G4 1GHz (15-inch Display PC2700 DDR)

    I'm comparing two sticks right now, from Crucial:

    Crucial DDR SO-DIMM PC2700 1024MB CL2,5*Non-parity, 2.5V, 128M x 64, 6ns, 200p

    and a Corsair Value, which is a lot cheaper:

    Corsair Value DDR SO-DIMM PC3200 1024MB*Unbuffered, Non-ECC, 128Megx64

    The only difference apart from PC2700/PC3200 (which is known to work), is the CAS Latency

    Crucial: CL2.5
    Corsair: CL3.0

    I know a little about CAS Latency and I'm not worried about that (no overclocking etc.).

    The other thing is the support voltage:

    Crucial: 2.5V
    Corsair: 3.0V

    Could this be a problem? If I buy the cheaper Corsair I want it to happily coexist with the 256MB stick that came with the machine.
    I don't know anything about "support voltage".

    Apart from this I see no reason not to buy the Corsair stick.
    Need some advice here...

    Thanks,

    jp

  2. #2
    RAM - need expert help
    Padawan's Avatar
    Member Since
    Jul 21, 2003
    Location
    Coruscant, Galactic Republic
    Posts
    1,185
    Your Mac's Specs
    14" iBook G3 900/640/40 _ _ Power Macintosh G3 All-In-One 315/768/20 _ _ 20 GB iPod
    Rep Power
    17
    The Corsair you listed doesn't meet the requirements for your PowerBook. Your machine requires memory with a CAS latency of 2.5 and an operating voltage of 2.5V.

    If you're looking for good prices on 100% guaranteed-compatible RAM for your machine, I'd recommend checking out OWC or MacSolutions.
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  3. #3
    jp_tix
    Guest
    Quote Originally Posted by Padawan
    Your machine requires memory with a CAS latency of 2.5 and an operating voltage of 2.5V.
    Ah. "Requires". That's the word I needed to hear. Thanks!

  4. #4
    RAM - need expert help
    Padawan's Avatar
    Member Since
    Jul 21, 2003
    Location
    Coruscant, Galactic Republic
    Posts
    1,185
    Your Mac's Specs
    14" iBook G3 900/640/40 _ _ Power Macintosh G3 All-In-One 315/768/20 _ _ 20 GB iPod
    Rep Power
    17
    Quote Originally Posted by jp_tix
    Ah. "Requires". That's the word I needed to hear. Thanks!
    I took those specs from Apple's Technical Notes. You can check out the notes for your system if you want to confirm compatibility of different RAM modules.
    ~ Support the LANCE ARMSTRONG FOUNDATION -- LAF.org ~

    Do you drive a Civic, Del Sol, or Integra & want more power & tighter steering feel? Click here for my inexpensive DIY Power-Steering Removal Kits.

  5. #5
    menace3054
    Guest
    www.4allmemory.com sells 1gb sticks of powerbook ram for a great price

  6. #6
    titan0111
    Guest
    I read it somewhere that Corsair Memory is the best memory for PC overclockers...

    I'm not sure that's the case with Apple...

    You can go with 3rd party 1GB stick but make sure check their return policy...

  7. #7
    jp_tix
    Guest
    Quote Originally Posted by Padawan
    I took those specs from Apple's Technical Notes. You can check out the notes for your system if you want to confirm compatibility of different RAM modules.
    Can you point me to the specific article inside Tech Notes?
    I couldn't find any RAM-stuff there.

    Thanks,

    jp

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