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condensation precautions

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Mar 22, 2002
santa barbara, ca
hey everyone, first post as you can see :)

I have a few questions on the proper precautions to take in order to avoid condensation. if this has been covered i apologise. i have searched around quite a bit but havnt seen a direct answer

im currently setting up a water cooling system using a refrigeration unit. I will be sending water to the blocks at ~5 C. the lines will be properly insulated but im not sure on how to insulate the blocks and cpu. im using gemini water blocks with the acrylic top. my main concern is the space between the block and cpu (mp 1600). ive read that many ppl cut an insulating gasket but wasnt sure on the exact procedure. it looks like a pretty straight forward process but are there any extra concerns i should be aware of?? im also going to pull out as much H2O vapor as possible using a large amount of silica placed near the inlet fans (working for a silicone company has its benefits :D)


Wonko The Sane

Dec 16, 2001
Port Richey, FL
to insulate the board, i've seen some people use conformatoinal coating (i think Dow makes it) to cover the area near the CPU (front and back of the board) to protect against water hitting the circuits. then use something like neoprene or closed cell foam on the inside of the socket, and around the socket (again front and back). to insulate the CPU/socket joint, dilectric grease seems to be the best way i've seen. to insulate the block, you should be able to use the neoprene/foam again, i've also seen someone use that expanding insulator (great stuff i think it's called) by making a mold and filling it with the waterblock inside. between the CPU and block, you'd need a thin piece of neoprene/foam (probably whould be a little taller than the die) and just cut out a spot for the die and cut to fit the processor.


Apr 6, 2001
If you are using a chiller at -5C then I suggest the following as it worked for me;
Cover the tails of the exposed conections on the back of the mobo with twin pack epoxy. The packaging for the epoxy must state that it is non conductive but I think most are. The layer must be thick enough to cover the tails. I used the spatula that came with the kit and it required about 2 applications. Use the same epoxy to seal the circuits and the edges of the cavity in the zif socket.
Get a couple of the mouse mats that have that rubber backing which is actually neoprene or closed foam. This is about 2mm thick. Make a mat that goes around the zif socket and another piece that will fit into the well of the zif socket. Before inserting the central pad make a slit in it and push your thermistor through the slit and then insert and make sure that the thermistor can make contact with the back of the cpu.
Cover the block in two layers of the same material. I glued it on. You can buy closed foam pipe insulation at most hardware or plumbing stores and make small wedges of this that can be pushed in the gap between the zif socket and the edge of the block insulation. The top surface of the proc (not the core) can be coated with dielectric grease.
Provided air cannot get to the block surface you won't have a problem. If you are going below -5C then thicker insulation will have to be used. I am at -25C at times and have 10mm insulation to cope with that.