Re: OFFTOPIC: SDRAM PC100
On Thu, 3 Jun 1999, Kenneth Scharf wrote:
> THREAD:
> --------------------------------------------------
> On Wed, 2 Jun 1999 shaleh@clifford.livenet.net wrote:
>
> > > The question is: if I buy a SDRAM PC100 chip, will it work on a
> > > computer with bus speed of 66Mhz ?
> >
> > Nope.
>
> I bought 2 128MB PC100 for my 66MHz ASUS, hoping that the dimms would
> still be usable when I get a new motherboard someday.
>
> I ran memtest86 for about 24 hours, no problems, and have been running
> fine ever since (several months).
>
> I started having problems recently (filesystem errors and signal 11) so
> I
> ran memtest86 again and one of the dimms has gone bad. I took it out
> and
> put back in an old regular 32MB dimm, and the two mixed togeter (160MB)
> ran memtest86 fine overnight, and seems OK after about a week.
>
> I don't know why the dimm went bad. I wouldn't think it's because the
> 100/66MHz issue.
>
> Please explain why you think PC100 shouldn't be in a 66MHz board. Do
> you
> have any ponters to info on the web?
> ---------------------------------------------
> REPLY:
> Dimms were made in two flavors EDO and SDRAM. They are also made in
> two voltages 3.3 and 5. If your computer is strapped for 5 volts you
> might be able to run a 3.3v dimm for a while,
in some cases it is possible to mix up edo and sdram, some MB:s support
that but then must be ensured that SDRAM can handle 5V. there is such
sdrams... I have successully used simms and dimms on same system and had
no problems what so ever even my system was overclocked.
Pasi S
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