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  1. 19th Feb 2006 11:09 #1
    mhar4
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    This is slightly off-topic, but I was thinking of upgrading my 12" DVI PowerBook's memory. The specifications are DDR266 PC2100 SODIMM. Does this mean that anything above this will also work, e.g. DDR333 PC2700 or DDR400 PC3200, or does it have to exactly the PC2100?

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  2. 20th Feb 2006 01:34 #2
    mhar4
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    No-one?
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  3. 23rd Feb 2006 11:31 #3
    Case
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    DDR memory was designed to be backward compatible, but there are no guaranties; the motherboard has to support it. The speed of RAM memory is based on the frontside bus, so for a 133 MHz bus, 266 MHz Double Data Rate memory seems to fit. If higher speed memory works in this Mac, don't expect a performance gain.
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  4. 23rd Feb 2006 15:17 #4
    mhar4
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    Thanks. It's purely a cost thing. The higher speed memory is actually cheaper than the older types. Must be a supply and demand thing.
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