using Dry Ice to cool a PC

How long can a PC survive with dry ice placed on top of it? After all, dry ice is solid carbon dioxide, and while it does not conduct electricity, so we don't have to worry about electrical shorts, but we actually have to worry about it being too cold. Despite our CPU being at 100% load, we are sitting at single-digit CPU temperatures. But here's the thing.

Dry ice can get as cold as negative 78 degrees Celsius. If the air around our CPU hits its dew point, it'll condensate, which will effectively form liquid water out of the air, which as you well know, can in fact short our computer. So I'm curious how long this will last for. In fact, we just hit zero degrees Celsius and I don't think this chart measures lower than that.

I'm just going to let this dry ice sit here until it either destroys the PC or it just sublimates into the air. Ten minutes later. This is actually kind of surprising. So our PC has not shut off due to condensation, but in fact, our CPU temperature has risen to the point where it hit the upper max. We were just at the lower limit.

As you can see, all of our dry ice has pretty much sublimated at this point. That said, we can see condensation begin to appear. That said, we can see condensation begin to appear. So this very well could have shorted our PC.