One day, someone wheeled this approx. 3x3 foot sized box to my door and asked me if I wanted it. It was a SGI Onyx with a giant monitor sitting on top, with a keyboard and mouse.
I plugged it in and it sounded like an airplane taking off. It immediately heated up my entire tiny office. It was the 4th Unix I had ever played with (Ultrix, NeXT and A/UX were previous ones). It had some cool games on it, but beyond that, at the time, I had no use for it because A/UX on my Quadra950, was so much more fun to play with.
I don't even think I ever opened it up to look at it. I don't know what I was thinking. lol.
After realizing it did not have much going for it, I ended up just turning it on when the office was cold and using it as a foot rest.
Oh yea, found a video... https://www.youtube.com/watch?v=Bo3lUw9GUJA