WOW, KZ... wow. Servers and their related parts are my favorites, they're such amazing feats of engineering and technology. So far I've only gotten my hands on blades and workstation servers, biggest one was about 80 lbs, a for real mainframe would be a dream come true for me.
I have to ask, was this a working unit at all? Did you get to turn it on? I know the functional PowerEdges from the mid 2000s that I got recently sounded like a small jet taking off when powered on, I can only imagine the roar this beast puts out. Also, can you say where it was pulled from? What type of business/corporation/whatever, don't need to know names, of course