Gordon wrote...
> What exactly does this plug do?
To which Glen replied...
Here's the basic story. ...
Yup, the plug goes to the back of the cpu to make a battery-optioned system
think a battery is attached. All just as Glen said.
However, the same type of plugs & sockets on the back are also used to
daisychain power signals from cpu to memory expansion box and/or i/o
expansion box. This is so if you turn on the cpu, the memory and I/O
backplane expansion boxes power up as well.
Few people have the mem or I/O expansion box in play, most don't have it or
don't need it. The real reason the connectors have been sought is to build
these "battery eliminator plugs". Sure, you can just stuff a resistor across
the right two holes in the connector. Or you can solder the connector inside
the power supply. I don't like either option, I'm to much of a purist about
having the original stuff operational "as it was".
HP actually did sell the battery eliminator plugs for use when the battery
backup wasn't connected. I just wanted more of them :D
Jay