At 09:07 PM 4/9/99 -0700, I wrote:
If I had to hazard a guess, I'd say that someone
had ECO'd this 8 to sense
the voltage level on the bus using the rear connector by connecting 5volts
at the back of the bus into the regulator board in the PSU.
Oh, and the person who eco'd it apparently didn't realize that the bus
connectors don't pass power from one backplane to the next ...
--Chuck