23 Nov
2009
23 Nov
'09
4:26 p.m.
Brian Lanning wrote:
Hi Everyone. I have no idea what these things are
called. They show up on
ebay all the time and look like entire 486 machines on a full-length 16-bit
isa card. I'm assuming these are designed to be plugged into a passive back
plane.
yes, they are intended for use in passive backplanes.....
I once tested one on a dead PC motherboard (I removed/cut out
as much as I could of the chips). I never tried adding any other
cards .... I was using the old (dead) PC board to put power to the
SBC.
Later SBCs are PICMG, and have an ISA bus and a (modified/
repositioned) PCI bus connector. I have a few systems and SBCs
of this type here.
PICMG I think started in the pentium generation. Prior to that
they may have all been ISA only ? Don't know of any variant that
ever carried a VL-bus off the SBC (what would have been the
point, as the primary use of the VL-bus was for graphics... not
the SBC's intended use).
-- Curt
I've always wanted to tinker with a computer of
this design, but I haven't
had any exposure to them. Is there anything I should look for or avoid
before trying to buy one of these boards? Thanks.
brian