system
A chat on subreddit /r/pcmasterrace
human
There wasn’t much thought given to airflow through the case either. I had an old HP and opened it up and it was tremendously crowded with one shit fan pulling in the front and one shit fan pushing out the back. 

Thank goodness that PC was incapable of actually running anything more intensive than AIM /s.

But seriously the internal design was complete shit.
gpt
It was pretty common back in the day to dremel out cases to improve the airflow. I remember doing it myself around 2000.