On 6/6/05, Kevin Handy <kth at srv.net> wrote:
You could make one like DEC used to: Take an 8-slot
backplane, and
fill in four of the slots with epoxy. You now have a 4 slot backplane.
Ahhhhgggg! Ever seen that with a BA123? Makes you cry... DEC didn't
want their graphical workstations being converted to departmental
server use, so they plugged up the extra holes in the backplane to
prevent expansion. For a while, one could order a virgin backplane
from spares, but they eventually caught on (then they
stopped hosing
workstation customers so much ;-)
Fortunately, I've only ever seen it at a DECUS (DEC-owned demo
machines); none of the machines I've worked with or personally owned
were broken this way.
-ethan