Way 2 Cool
Way 2 Cool
Download template.doc 130 Kb
Heat sink (Main)
Heat sink (Rear) Allstar Shop
"Y" Adapter (to connect peltier to HD power cable) Radio Shack
Screws, nuts, washers, and springs
Click the link at the top of the page to download the templates in a MS Word Document.
The word doc will print the templates in the proper size.
Hot and Cold Plates
These plates are cut from 3/16" aluminum sheet stock.
The insulation is sized for a 30mm X 30mm Peltier.
Trim according to the TEC you use. The left and right
edges may also be trimmed to allow a good fit in the
Celeron's mount on to the motherboard. I used Abit's
PII motherboard mount.
The TEC was wired to a 486 heat sink fan splitter cable
I had left over. The splitter is attached in between the hard
drive and its power connector. The yellow splitter wire is
+12 volts and the black is ground. The positive TEC wire
(red) is connected to the yellow and black to black. Make
sure you power up the TEC to check which side is the cold
side before mounting it. Don't run it for longer than necessary
to determine which is hot and which is cold.
It is important that the mating surfaces are flat and as smooth as you can get them. This is especially important for mounting the heat plate to the heat sink. As I discussed in the Celeron article, I use successively finer and finer grades of wet / dry sand paper taped to a piece of glass or other flat surface to lap the surfaces flat. Before applying thermal compound to the surfaces, you should not be able to see any gap between the plate and sink when held up to a light. If you come across a heat sink with a thick base (> 3/8"), the heat plate will probably not be necessary.
There is not too much to the assembly once the plates are cut and drilled. Make sure that the peltier is installed with the cold side facing the Celeron and that a thin coat of thermal paste is applied between each metal surface. Tighten the screws in an "X" pattern to keep the pressure constant and to avoid crushing the TEC. Once the springs are about half way compressed, twist the plates and SEPP back and forth a few times to even out the thermal paste and then tighten the screws until the springs are almost entirely compressed.
If you decide to build this project, drop me an email and let me know of the outcome. I'd be interested to get some more input on the success rates.