On Tue, 18 Jan 2000, David Zverina wrote:
> I've never had any problems using PC100 RAM in in 66Mhz Pentium II systems.
> I guess you could probably extend it to pentium systems too.
>
> > Visser, Martin (SNO)
> >
> >
> > This is not Linux specific but you guys are always so helpful. I have a
> > Gigabyte TX3 motherboard with Pentium 200Mhz processor. I have a
> > single 64MB
> > SDRAM installed, which I believe to be running at 66Mhz (PC66?). The
> > question is can add a PC100 SDRAM (probably 128M) to this and be assured
> > that it will work? (I know you can still buy PC66 SDRAM but I'd rather buy
> > something that can be moved to a faster mainboard)
> >
> > Martin
The answer is maybe: running 100MHz (or faster) components at a 66MHz clock
itself is not a problem - *but* - I have found several older machines (socket 7
vintage) not working with newer DIMMs. It is not related to the DIMM capacity
either - older boards may be documented to work with 128MB DIMMs for instance,
but still not work with the new memory.
Just this month I tried to upgrade serveral older Digital 3000 (Pentium
233MMXs) series PC's here at Compaq with new 128MB DIMMS - no luck -
the memory did not work with them - although some have been upgraded in
the past with generic 128MB DIMMs that did work. The new DIMMs do fine
in my Dual PII and super-7 motherboards at home.
The best I could find out was some vague references to older DIMMs running
with 2 clocks and newer ones working with 4...
I would really like to know for sure if this is the case....
Following this thread: does anyone know the differences between different
manufacturers memory products in the SODIMM form factor? It seems like
suppliers have great lists of make/model of notebook matched up to specific
manufactures memory products....
--
Cheers,
Jim.
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