It's only a silly question if they already did it.
My parents used to run a computer repair shop when I was young. This question, along with "is it plugged in", were always the first two questions my father would ask someone that would call complaining that their computer wouldn't start/turn on.
The other one that always floored him was people complaining about "the cup holder" no longer functioning properly. And yes... this was the CD-ROM player that people would think is a cup holder, break it, or spill stuff on it and gum it up.