Depending on the speed of the eMac that could've been a capacitor problem though, which every vendor at the time experienced.
eMacs are big and difficult to move specifically because of where they were originally sold. The intent was that you bought 30 of them, and had a moving crew set them up, and then they just hung out in the lab for the next three to five years. (not being stolen from the school, because of the fact that they're huge, heavy, and had a less desirable CRT display.)