Hello, Wayne.
This is a "loose end" I meant to reply to about a month ago, when we
were talking about - -

 WC> Are these suitable for the 4 MHz refresh rate I'm seeing
 WC> on Ebay. I'll stick these numbers into a search engine too
 WC> to see what I can find out.

 JH> AFAICT, the proper question would be "will 4K refresh SIMMS work in
 JH> this mainboard?"   I bought some 32MB and 64MB 4K refresh sticks on
 JH> Ebay awhile back from a seller who was the actual manufacturer -
 JH> Quadrant Components.  I don't find them there selling direct in today's
 JH> listings. But one seller I found today does have some sticks made by
 JH> Quadrant, and there is a list there of chipsets which will support that
 JH> type refresh - - the only Intel chipset listed there is 430TX.  I'm not
 JH> sure whether this prob occurs on simms smaller than 32MB, and I do see
 JH> at Ebay that there are some 32MB simms which do 2K refresh.


 JH> If mainboard doesn't support the 4K refresh SIMMS, they may still be
 JH> detected and work, but at smaller than actual capacity. (half, or
 JH> perhaps less).

 WC> Doubt it, dram stands for dynamic memory and refresh means just
 WC> that so if it doesn't get refreshed often enough poof goes your
 WC> data and programs from memory.

I think you misunderstood what I was trying to say.  I haven't found a
real good explanation, but I think that "4K refresh" part refers to
something about the _way_ (maybe block size or column/row addressing?)
that the SIMM memory is refreshed, not the frequency as in 50ns, 60ns,
70ns, etc. BICT the problem that some of the chipsets have with some of
the newer memory sticks is associated with higher density memory chips,
and the way the system's chipset is set up to address the memory.

There is a similar situation with SDRAM DIMMS, where older chipsets
can't properly address some of the newer memory sticks which use higher
density chips.

Good luck.

- - -  JimH.

... Roadkill?! Heck, Jim, lets go back- that critter is still _alive_ -Bubba
--- MultiMail/MS-DOS v0.32