Extra-Small Mini Fridge

So, to attempt to make the TEC run even cooler, I decided a standard bench PSU won't be able to provide enough power (12V, 3A). In addition, a bench PSU is not a good long term solution, and a dedicated PSU is probably a much better and cheaper solution. For this matter, I ordered a couple (ruined my 500W by shorting Green -> Black with no load attached) of 350W ATX PSU's, the one of which pictured a server grade. I know the 12V lines can provide as much as 16A so it should be more than sufficient to power the TEC. However, an unfortunate side effect is I do not have sufficient heat dissipation to get the cold side colder than room temperature. The connectors are standard screw terminals, which can support up to 6A or 12A, I do not recall.

The next step is to attempt to find a heat sync/fan combination to pull away as much heat as I can. I do have an overly large heat sync lying around, which might be nice just to test the heat dissipation, but it is too large for mounting on the side of the Styrofoam container.

Well, the first cut was put into the Styrofoam cooler. It is going to be exactly the same size as the TEC's cool side radiator, in order to ensure the insulation works the best. The ATX PSU was modified to allow screw connections to the fans and TEC and a switch to enable the PSU (Forcing an ATX PSU on is as easy as tying the green wire to any ground wire),but it appears something is broken as the PSU no longer turns on. When I turn on the external switch, I hear a single *click* in the PSU, but no power or fan movement.

Once this issue has been diagnosed, the next step is to ensure the insulation is complete; possibly with caulk.