Just scored 3 Yosemites from someone on the NewtonTalk list.
The one that was believed to be a working machine has a quirk and I am looking for a clue. Hooked up power and a monitor and a USB keyboard. Machine chimes okay on boot up and nothing happens. DVD drive will open and close okay, but nothing else - no monitor output at all. Tried with a monitor (AC) plugged into the Mac as well as into the wall.
(Yes, monitor works otherwise)
Opened case and hit both (one at a time) buttons in the lower left corner - no change.
What can I do to get this apparently good machine to give me the time of day (so to speak)?
PS - as for the other two, have not tried, but plan to get all up and running if I can.