What is the coldest temperature safe for the computer & monitor in a room.

I think you would want to worry more about humidity than cold. If you're working in a freezer, I think it would still work, but freezers and refridgerators also produce moisture which could get parts wet on computer from its own heat. We can fix this, but you're gonna need a butter knife, a roll of duct tape, and a car battery

It depends on whether the computer is going to be ON all the time. If you have a computer that is OFF, been in a "cold soak" overnight, in a cool room, the hard drive just might throw a rod--figuratively--depending on the temp. Somewhere around freezing, and colder, I'd think would be suspect. Now if it was to be left on all the time, that is a different matter.

Galvin, check out this thread. i_XpUser

As I see it, the only danger is water droplets falling from the inside of the case onto the motherboard (the warm air of-course condenses when it hits the cold inner surface). To answer this properly you need to know the "moisture content" of the air (use weather tables) then plot this against the case temperature on a psychrometric chart. No doubt such charts and tables are out there on the web. I'll assume you are not boiling kettles in the room or adding to the moisture in some other significant way. If you get anywhere near saturation (100% RH line) then there is some risk. I can't see any other reason why a warm computer would be affected be a cold room. It should love it. Derek.W

Thanks for all the replies they all were very helpful.