Heat spreading through pcb Insulating question.

JFettig · 11-28-2004, 04:04 PM

Hi, I just built a peltier cooler for my new 9600xt that cools both the gpu and the same side ram, I have insulated the cold plate very well and I will almost be able to just use it the way I have without any conformal coating or silicone because of the way I designed it.
My question is how far will the heat spread(lack of heat) through the card? how far and how much will I have to insulate on the back side?

I am planning on trying to run this at 5v and see if it will cool it just enough before I make a plunge to full 12v then maybe a 172@12v later if I keep the setup.
Heres a few quick shots.

I made it out of aluminum because thats all I have at hand at the moment, and I am not too worried about the semi-small performance decrease at the moment.

Jon

jaydee · 11-28-2004, 04:29 PM

I think it will largly depend on the load of the GPU. If it is idle then it maybe be a problem, if at load you may not be. Being it is doubtful you will be running the card full load 24/7 it maybe a good idea to insulate it. Assuming the pelt isn't temp controled anyway...

JFettig · 12-04-2004, 12:42 PM

Well, its up and running, it spreads through the pcb to the backside ram pretty good, but not too far other than that, I got it up to 610/355 so far.

Jon

11-28-2004, 04:04 PM	#1
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	Heat spreading through pcb Insulating question. Hi, I just built a peltier cooler for my new 9600xt that cools both the gpu and the same side ram, I have insulated the cold plate very well and I will almost be able to just use it the way I have without any conformal coating or silicone because of the way I designed it. My question is how far will the heat spread(lack of heat) through the card? how far and how much will I have to insulate on the back side? I am planning on trying to run this at 5v and see if it will cool it just enough before I make a plunge to full 12v then maybe a 172@12v later if I keep the setup. Heres a few quick shots. I made it out of aluminum because thats all I have at hand at the moment, and I am not too worried about the semi-small performance decrease at the moment. Jon

11-28-2004, 04:29 PM	#2
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	I think it will largly depend on the load of the GPU. If it is idle then it maybe be a problem, if at load you may not be. Being it is doubtful you will be running the card full load 24/7 it maybe a good idea to insulate it. Assuming the pelt isn't temp controled anyway...

12-04-2004, 12:42 PM	#3
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	Well, its up and running, it spreads through the pcb to the backside ram pretty good, but not too far other than that, I got it up to 610/355 so far. Jon

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