My first ever retail PC purchase was a Packard Bell 486 in '94. Got it home, set it up, turned it on. Nothing!
Futzed with it for 20 minutes or so then called the help line. Working with them for about 30 minutes it eventually got to the point where the case had to be removed.
So, trying to follow the support guy's instructions I'm looking and what do I find? A giant empty hole where the processor is supposed to be!
At that point the only thing he could suggest was to return the computer. Now that's back in the days where business wanted a logical, believable reason for a return. Not like it is now where they ask no questions.
So, getting them to understand that they sold me a computer with a missing processor was another trial.
Very wierd. Someone had to have broken into and taken the processor and put it all back so it looked like it hadn't been tampered with. Either that or the assembly line missed the "insert processor" step when they made that computer.