Oh yes... good'ol days...
....when overclocking was king, and getting your hands on some liquid nitrogen (figuratively... use no gloves and your hands fall off) was all the rage.
What was the record back then? 5 GHz on liquid nitro? Anyways, enjoy some demented people doing it on an oldie machine.
The video actually belongs to Tom's Hardware Guide, repost from some overclocking fans from Brazil. Note that the build is actually in Germany, some refrigerator compressors are used, along with proper insulation. Note too, the entire motherboard is also frozen.
And it ran stable for 1 hour, before all the nitro evaporated.
And this one claims it ran some AMD chip at 6.9GHz... enjoy...
It looks like a steam train.