PDA

View Full Version : Ready to peltier-ize !


Naeleros
10-05-01, 04:50 AM
Well.. I think the subject sums it up. I'm looking for suggestions about setting up a peltier. My current system is a 1.4 TBird watercooled. I think I'll be replacing my waterblock with a DD block (one designed for peltiers).

The main things I need advice on have to do with condensation, choice of power supply, and choice of peltiers. I assumed that a 172w would be the most desireable? I don't know where to get a good dedicated p/supply, yet.

Anyway, any and all insights are appreciated. If you know of good articles to read or places to purchase peltier stuff from.. fill me in :).

James

The Overclocker
10-05-01, 10:09 AM
what about on the front page, also notice the article under cooling which uses liquid nitrogen, no foam or instlation

Colin
10-05-01, 10:31 AM
PELTS

Kryotherm Sofware for sizing pelts. (http://www.kryotherm.spb.ru/index.htm)

Applying Pelts (http://www.heatsink-guide.com/applying-peltiers/)

Peltiers in Practice (http://www.dansdata.com/peltprac.htm)

Picking a Peltier (http://www.dansdata.com/pelt.htm)

PSUs

Jameco (http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?prmenbr=91&prrfnbr=3652&cgrfnbr=780&ctgys=503;528;780;)

Peak to Power (http://www.peaktopeakpower.com/catalogs/meanwell-001.html)

TE Tech (http://www.tetech.com/power/)

Astron (http://www.astroncorp.com/w28.shtml) I use an Astron VLS-35M. It's big and expensive but the front panel controls and meters for voltage and current are worth it.

CONDENSATION PREVENTION

Coat your the inside of the socket, area surrounding the socket and the back of the board behind the socket with your choice of conformal coating and insulate with neoprene. Remove the feet from you CPU and coat the exposed circuitry with conformal coating. Don't forget the dielectric grease in the pin holes of the ZIF socket. You may want to cut a thin strip of neoprene to cover the locking lever of the ZIF socket. This is not shown in any of the following photos.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51738695

Make a blanket out of 1/16" neoprene to cover the whole package.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51738692

If you are using one pelt, you will need to make a neoprene gasket to surround the pelt between the block and cold plate. With dual pelts, you can just run a bead of silicone around the pelts between the block and cold plate. Then surround the coldplate with neoprene. I found it easier to insulate the whole block and cold plate as a package. Note the 1/16" CPU blanket in the previous photo is also in the photo below. DO NOT use two sheets of 1/16" neoprene.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=50217756

The completed package with the block installed on the motherboard.

http://albums.photopoint.com/j/View?u=1551335&a=11768501&p=51743929

Warlord2
10-05-01, 08:40 PM
Colin or anyone else


has anyone ever tryed just spray of foem insolation for the insolating?

I have seen it done with a celly I think but never a tbird

also would a mouse pad work?
also Colin what is your favorite conformal coating?

Colin
10-06-01, 12:51 AM
Spray foams are too messy for me. I prefer Aqua Seal with Cotal hardener or Toluene. It cures in an hour, is easy to apply and works well for holding insulation in place.

A neoprene mouse pad will work fine, provided it's the right thickness for your application.