on 03/02/05 23:49, John P. Roberts at [EMAIL PROTECTED] wrote:
> I have a PB G4 400 MHz ("Titanium Mercury") and want to upgrade my RAM.
> I currently have one 256 and one 128 Mb SIMM for a total of 384 Mb.
> Both SIMMs are "PC100", whatever that means. I was thinking of
> replacing the 128 Mb with a 512, to yield 768 Mb. I have two questions:
>
> Can I just swap the 512 into the 128's ("bottom") slot, or does the 512
> need to go in the top slot and the old 256 into the bottom?
>
> Can I have one PC133 SIMM and one PC100, or do they both need to be the
> same?
>
If both the 512 and the 128 are physically the same, then I believe you can
swap them. I'm just not sure that the Titanium uses low profile SODIMMs. I
believe that you can mix PC133 and PC100 together. That number refers to the
memory speed, the larger the number, the faster the memory chip works.
However, when you put a faster chip into a computer with a slower memory
bus, then the memory downgrades its speed to match the computer speed.
-Laurent.
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Laurent Daudelin AIM/iChat: LaurentDaudelin <http://nemesys.dyndns.org>
Logiciels Nemesys Software mailto:[EMAIL PROTECTED]
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of large, disruptive machines which routinely cut critical backbone links,
creating Internet outages and packet over air problems.
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