Heh, one of my most prized posessions in my teens was a GlobalWin FOP38 with that PAL6035 you mentioned mounted. An absolutely CRAZY fan that had no objective right to exist, much less in a teenager's Socket A Celeron rig.

I remember the day it arrived in the mail and I installed it - my family had just recently moved into a new house where my own room was located directly above the living room. When I started my PC with the new cooler and fan for the first time, the noise (esp. the obscene vibrations through the floor/ceiling!) actually prompted my mother to visit and check what's up/wrong :D

I ended up rigging together two chopping boards and a few pristine cleaning sponges as a kind of pedestal for my big tower case to rest upon, and was allowed to operate that way for the months to come. If it weren't for the over-ear headphones I wore all day back then, I guess I would have had suffered hearing loss from the noise exposure rather sooner than later...

1 or 2RU servers and other rackmount equipment still uses deafeningly loud small fans (10k+ RPM) because there's no space for anything bigger.

I had a "small" Mini Super Orb on my thunderbird, more reasonable then the original Super Orb, and yet my neighbors of the floor above came to complain about my computer's noise

Somehow I managed to sleep with it on though xd

Mounting and dismounting it was very scary, and seeing it hang vertically with the cpu attached made me have cold sweats every time O _ o