----- Original Message -----
From: Mike Ford <mikeford(a)socal.rr.com>
Few things jazz me more than finding an
upgrade
processor in an old hulk,
but some of these cpus are not clear to me
what
they are. By the 486 era
things make sense, and I have Kingston 133,
Evergreen, and other fast 486
upgrades, but could someone explain a bit
what
it is I should be looking
for as a 386 upgrade?
The only 386 upgrades I know of are know by
the ID
-486 SLC propably a 386 SX replacement
-486 DLC a 386 DX (I dunno for sure)
They had extra cache and could run up to 40
or 50 Mhz with some internal
clock multiplication. Numerical coprocessors
were of the 387 type (Fastmath).
Souped up 386's so to speak
I've seen both on CPU-boards that looked very
much like
their 386SX /DX progenitors. Same types of
PLL oscilators, placement of
SIMMS (30pins) and slots and identical glue
chips
It has been know tha not all software could
be run reliably on them.