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peltier and air cooling
- Thread starter Blunt
- Start date
- Joined
- Sep 21, 2001
depends on the pelt. if you are using a 80watt or smaller, you will be able to air cool it. acutaly, if you are trying to cool anything more that a northbridge or a mx440, you are going to need water.
- Joined
- Sep 16, 2003
- Location
- North Carolina via Silicon Valley
You will want to use a reasonable sized heatsink maybe something like what you would put on an old PIII or something. The hotsides of Pelts get hot and fast if you don't have proper cooling of the hotside you may end up heating up your NB instead of cooling it. I have succesfully cooled smaller pelts with the PIII heatsink and the two 40MM's that usually come with it. If it gets loud try to run the fans and or the pelt at 5v instead of 12v.
~Dan
~Dan
- Joined
- Sep 16, 2003
- Location
- North Carolina via Silicon Valley
Also it helps a a lot if you can seperate the hotside from the cold side with a spacer block. This keeps the heat from radiating back to the pelt and you NB. Try to get an aluminum or copper spacer block. You will want to have it in this order.
HSF touching hotside, pelt, coldside touching spacer block, spacer block on your NB be sure to add some insualtion around the spacer. You can cut out some styrofoam or get self adhesive gaskets.
~Dan
HSF touching hotside, pelt, coldside touching spacer block, spacer block on your NB be sure to add some insualtion around the spacer. You can cut out some styrofoam or get self adhesive gaskets.
~Dan
- Joined
- Nov 12, 2002
- Location
- Rootstown, OH
What coolerbydesign is referencing as a "spacer block" is actually called a "coldplate". Anytime you use a peltier (TEC) you MUST use a coldplate.
The coldplate goes between the coldside of the peltier and the CPU. Thermal energy does not conduct well across the surface of the peltier, so the coldplate lets the entire cooling power of the peltier be used to cool the smaller area of the CPU die.
BTW: Coolerbydesign, you can use the edit button that is under your post to add afterthoughts or correct typos instead of making another post. It keeps things cleaner and makes your points come across more clear.
Welcome to the forums.
The coldplate goes between the coldside of the peltier and the CPU. Thermal energy does not conduct well across the surface of the peltier, so the coldplate lets the entire cooling power of the peltier be used to cool the smaller area of the CPU die.
BTW: Coolerbydesign, you can use the edit button that is under your post to add afterthoughts or correct typos instead of making another post. It keeps things cleaner and makes your points come across more clear.
Welcome to the forums.
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- Joined
- Nov 12, 2002
- Location
- Rootstown, OH
As a coldplate? No.
This is a picture of a pelt (work with me here
). The white square is the entire coldside of the pelt, the black area is the size of a CPU die. If you do not use a coldplate, you will only be using the cooling power of the black square, instead of the cooling power of the entire white area.
This is a picture of a pelt (work with me here
). The white square is the entire coldside of the pelt, the black area is the size of a CPU die. If you do not use a coldplate, you will only be using the cooling power of the black square, instead of the cooling power of the entire white area.
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- Joined
- Nov 12, 2002
- Location
- Rootstown, OH
All you need for a coldplate is a block of copper of appropriate size. This might help:
Coldplate materials and thickness
http://www.overclockers.com/articles305
I strongly encourage you to read that article in the link.
Actually, upon looking back at some links of mine, coolerbydesign was correct in calling it a spacer block as is noted in this quote:
If you would like to learn almost everything there is to know about pelts, you can read some of these links also:
Follow the "peltier info" link to find places to buy peltiers - you won't want to go to a site that specializes in computer cooling or you will pay a premium.
Coldplate materials and thickness
http://www.overclockers.com/articles305
I strongly encourage you to read that article in the link.
Actually, upon looking back at some links of mine, coolerbydesign was correct in calling it a spacer block as is noted in this quote:
If you would like to learn almost everything there is to know about pelts, you can read some of these links also:
Colin said:
Follow the "peltier info" link to find places to buy peltiers - you won't want to go to a site that specializes in computer cooling or you will pay a premium.
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