19 Nov
2001
19 Nov
'01
3:31 a.m.
back then I was involved in that stuff and 99% of the Dram problems were
design
related and not alpha particle. To see the alpha particle in real apps
you'd need
a box that had thouands of them running 7x24 for weeks! S100 systems that
ran
that well were prone to the power company failing to deliver before ram
failure was
a problem!
Back in that time frame I used static ram due to the general flakyness I
preceived
of most S100 cards. The best S100 ram I'd used for that time frame (1980)
had
an 8202( Netronics DRAM using 16Ks).
Allison
From: Douglas Quebbeman <dhquebbeman(a)theestopinalgroup.com>
that
Back in the
early days of 64k DRAMs, the COORS ceramics were described as
having
> too much radioactivity for use in high-density memories. I'm not sure
was,
other
in fact, the case, but somebody seems to have
thought so. Do you suppose
they
> fixed that? Coors was a leader, in the '60's in porcelain tooling and
> such oddities, not to mention having
"perfected" the draw-and-iron
process
for
making thin-walled aluminum beverage cans.
My 8k EconoRAM IV, one of the first S-100 boards to use DRAM, used the
very chips that supposedly had that problem. I've been told mine are
OK, but it used to be a bit flaky; however, I always blamed that on
the state of the early S-100 systems and my soldering work on the SOL
to which it was attached... I solder *much* better now... -dq