[Thinkpad] Memory upgrade

[Alex Austin]

According to Wikipedia, the 1.86 Ghz Pentium M has a Dothan Core and a
533Mhz Front Side Bus. This means that it won't benefit from greater than
DDR2-533 ram.

- Alex

On 10/17/06, bearpoint at netzero.net <bearpoint at netzero.net> wrote:
>
> I have no idea if the chipset/processor can use the faster ram.  The specs
> from Belarc Advisor are:
>
> 1.87 gigahertz Intel Pentium M
> 64 kilobyte primary memory cache
> 2048 kilobyte secondary memory cache
>
> but the machine is pretty new, purchased in February, 2006, and Crucial
> has a pretty good reputation, so my inclination is that if they offer it as
> an option, it will be supported by the processor.  Of course, they're trying
> to make money, so it's certainly possible that they're offering something
> that will work, but not add anything,  I really appreciate your view that
> even if the faster ram is supported, it wouldn't make much difference.
> Thanks!
>
> On 10/16/06, circuitsoft.alex at gmail.com wrote:
>
> I'm not sure the chipset/processor in that machine can make use of the
> faster ram. Besides, the Pentium M has a very good cache management system,
> so even if it could use DDR2-667, I doubt it'd make much difference, even
> for the power user.
>
> - Alex
>
> On 10/15/06, bearpoint at netzero.net<http://webmaila.netzero.net/webmail/new/8?folder=Inbox&msgNum=00000RW0:0015D5Y_00001sG9&block=1&msgNature=all&msgStatus=all&count=1161136894&content=central#><bearpoint at netzero.net
>
> <http://webmaila.netzero.net/webmail/new/8?folder=Inbox&msgNum=00000RW0:0015D5Y_00001sG9&block=1&msgNature=all&msgStatus=all&count=1161136894&content=central#>>
> wrote:
> >
> > I am about to upgrade the memory for 3 TP R52s.  They all currently have
> > 512MB, which IBM says is PC2-4200 CL4 SDRAM 200-pin non-parity SoDIMM
> > 533HMz.  Crucial gives me the following options:
> > DDR2 PC2-4200 • CL=4 • UNBUFFERED • NON-ECC • DDR2-533 • 1.8V • 128Meg x
> > 64
> > DDR2 PC2-5300 • CL=5 • UNBUFFERED • NON-ECC • DDR2-667 • 1.8V • 128Meg x
> > 64
> >
> > 1 machine is used by a power user who could use the 2GB max memory.  The
> > other two probably don't need that, especially at +$300.  Is there really
> > going to be a noticeable difference between 533 MHz and 667 MHz?
> > My choices:
> > Replace the power user 512 4200 with 2GB 4200 or 5300, put the existing
> > power user's 512 4200 into one of the other 2 machines, giving it 1 GB, and
> > get another 512 of 4200 for the other user.
> > Move everybody to 5300
> > Thanks for your input
> >
>
>
>
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