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Just got a peltier

post #1 of 5
Thread Starter 
I bought a peltier a few days ago and it just got here, but have no Idea how to use it, I want to make either a small air conditioner, or possibly to cool my cpu. it is only a 14.5V 158W, and it moves 115W of heat. here are my questions:

which side is hot, which side is cold, how can I find out?
If I plug it into a power supply, will this only draw 158W, or will I need some kind of controller?
How much pressure can these take? I've heard they work better when under pressure.


I have an old pentium mmx comp that I will be testing this on.
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post #2 of 5
For the hot and cold side... put 2 heatsinks on each side (generally the same one would be preferred), and make sure the WHOLE pad are touching the heatsink... You also need quite alot of thermal paste on it for it to work properly or it'll burn up.

You should be able to use your powersupply without problems, but it's not recommended to fuel it all off 1 connector. I'll leave that question to the pr0s.
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post #3 of 5
Thread Starter 
could I just line up a 9volt battery, to see if one side gets warm, and the other cool? would that work?
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post #4 of 5
Hold it between your thumb and forefinger power it up for 4-5 seconds, it wont get hot enough to burn you that quick..Then mark on it with a pencil which side is hot and which is cold...Its to small to cool a CPU..I have a 320W on a 150 Opty at 12V and it barely keeps me in the low teens OC'ed....150-300 psi is the best crush pressure...
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post #5 of 5
make a mini fridge out of it...
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