Re: I've done this too
Over 20 years ago, so no smartphone pics.
Aircon popped in computer room. Getting toasty rapidly.
Close to 35, in my case: I'm in the computer room for some reason when I hear the dull roar soundscape changing. After a couple of seconds it dawns on me that it's the aircon rumble that's absent now. Which means that there's now close to 100kW going in every second that's not taken out, which is clearly suboptimal for the continued operation of the equipment present. I sprint out the door and into the sysadmin pen, and alert those present. Half get assigned to raiding the offices and confiscating any fan they see, the others shut down and switch off all the systems and storage not deemed absolutely essential. It's the one time I've seen a thermograph move, climbing 10 degrees in as many minutes.
We lost maybe three RA81 HDAs and one logic board out of well over a hundred, and one memory board from one of the systems.