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A mini fridge CAN cool a PC - Page 4

post #31 of 55
Quote:
Originally Posted by tristanguy1224 View Post
i put 2 80mm fans on the back of the fridge . . .
lol!
post #32 of 55
huge fail.
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post #33 of 55
It's never been a question of CAN IT COOL, but for HOW LONG. Refrigerators are NOT meant to cool a PC, they are meant to keep cool stuff cool. A normal cycle is a few minutes every hour, not constant. It will kill the fridge soon enough.
post #34 of 55
I'd like to stick in my warning here.

Oil is non-conductive, yes.

Does it damage capacitors? It certainly can

Non-Conductive =/= Safe.

3M makes a fluid that is safe, non-conductive, etc. It's called fluorinert. Costs $150/gallon cheapest.
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post #35 of 55
Hate to bring this up
I still ponder from time to time if it really is impossible to use a mini fridge to cool a pc or at least one or two parts of it...


But what is it that kills the compressor? Is it from overheating the unit?

My mini fridge used to run constantly and did a poor job at keeping the food cool, and I pulled the thing out to look at it. First observation was no radiator... is that normal?

But much more importantly was the HEAT!!! I was afraid that if a wire touched that compressor, I would have melted plastic and fire! I burned my hand touching it. And this is how the thing had been running. The fridge is old and probably has insulation problems... so it just keeps running.

Being creative, I decided to pull an old CPU heatsink of mine out of a box of parts, put some thermal paste and a bit of super glue on it, and stick it to the top of the compressor. I then cut up an old 12v wall transformer and wired up the fan on the HS.

Now, it has amazing cool temperatures. At first the heatsink was immediately burning hot, but eventually cooled down the compressor, and then the compressor stopped running all the time. The thing is cool to the touch at any time now.



So, if overheating the compressor is the issue with a mini fridge cooled pc, what if you were to add a heatsink+fan to it?

My fridge was overheating from running most of the day, and adding a HS to it fixed the problem. It has been running fine now for a few weeks... not dead.
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post #36 of 55
Quote:
Originally Posted by k4m1k4z3 View Post
Hate to bring this up
I still ponder from time to time if it really is impossible to use a mini fridge to cool a pc or at least one or two parts of it...


But what is it that kills the compressor? Is it from overheating the unit?

My mini fridge used to run constantly and did a poor job at keeping the food cool, and I pulled the thing out to look at it. First observation was no radiator... is that normal?

But much more importantly was the HEAT!!! I was afraid that if a wire touched that compressor, I would have melted plastic and fire! I burned my hand touching it. And this is how the thing had been running. The fridge is old and probably has insulation problems... so it just keeps running.

Being creative, I decided to pull an old CPU heatsink of mine out of a box of parts, put some thermal paste and a bit of super glue on it, and stick it to the top of the compressor. I then cut up an old 12v wall transformer and wired up the fan on the HS.

Now, it has amazing cool temperatures. At first the heatsink was immediately burning hot, but eventually cooled down the compressor, and then the compressor stopped running all the time. The thing is cool to the touch at any time now.



So, if overheating the compressor is the issue with a mini fridge cooled pc, what if you were to add a heatsink+fan to it?

My fridge was overheating from running most of the day, and adding a HS to it fixed the problem. It has been running fine now for a few weeks... not dead.
Do a quick search. We've discussed this topic on many occasions.
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post #37 of 55
Quote:
Originally Posted by Cepheus View Post
I'd like to stick in my warning here.

Oil is non-conductive, yes.

Does it damage capacitors? It certainly can

Non-Conductive =/= Safe.

3M makes a fluid that is safe, non-conductive, etc. It's called fluorinert. Costs $150/gallon cheapest.
I really wish this myth would die.

Cap's will not die if used in oil. If that were true none of us would have electricity in our homes. What do you think cool's those massive cap's sitting outside on the pole that supplies electricity to your home's? We call them transformers, but they are really just extremely massive AC cap's.

Any decent mobo will have solid cap's now a day's anyways, which make's that myth of oil seeping into them even more of a lie.

Please stop spreading misinformation as if it were fact.
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post #38 of 55
Quote:
Originally Posted by NidStyles View Post
I really wish this myth would die.

Cap's will not die if used in oil. If that were true none of us would have electricity in our homes. What do you think cool's those massive cap's sitting outside on the pole that supplies electricity to your home's? We call them transformers, but they are really just extremely massive AC cap's.

Any decent mobo will have solid cap's now a day's anyways, which make's that myth of oil seeping into them even more of a lie.

Please stop spreading misinformation as if it were fact.
You obviously don't know much about electronics.

Capacitors store charge, and are usually made of (unless they are solid capacitors) oiled paper sandwiched between sheets of metal foil, and packaged up. On the other hand, a transformer works by winding two coils of wire around a magnetic core. This is not a capacitor. Capacitors store charge, transformers merely step the voltage up and down on a circuit.
So you're wrong there.

If by saying 'any decent motherboard' you mean 'any recent motherboard' (because many excellent older motherboards, such as the p5b deluxe do not have solid capacitors) you should define it as such. Most people who try a cooling experiment tend to try it with older rigs. You also fail to remember about addon cards.

Most addon cards, especially sound cards do not use solid capacitors.

Firstly, if oil gets into the capacitor in your motherboard or sound card, which, depending on the capacitor, it might, the mineral oil and the dielectric (usually oiled paper) will mix and combine due to diffusion. I'm not sure what the effect of this would be, because unlike you I'm not a trained and qualified electrical engineer, but I would imagine that the capacitor would stop working as intended, due to the intermingling of the two oils, and the removal of a lot of the electrolyte.

Before you start trumpeting things as an out-right lie, please research your information, and make sure that you're right. Definitely won't =/= Probably won't.
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post #39 of 55
Quote:
Originally Posted by xxbassplayerxx View Post
Do a quick search. We've discussed this topic on many occasions.
thanks for coming out.

But

I have read plenty of threads where it is discussed that the compressor will die.

What I am saying is, is it the overheating that kills the compressor?
I have read through the discussions from the past year. All people say is that the compressor will die... not what condition besides running too much. Is it due to overheating?
Nobody that I have seen has said how long it takes for it to die or has any records posted from their personal experience.

Mine was running most of the time due to the fridge insulation being crappy. And it was very much overheated. Adding a CPU HSF to it keeps it cooled off just like it would keep a CPU from overheating and wearing out. Wouldn't this idea be useful in a fridge cooled pc setup?
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post #40 of 55
Quote:
Originally Posted by k4m1k4z3 View Post
thanks for coming out.

But

I have read plenty of threads where it is discussed that the compressor will die.

What I am saying is, is it the overheating that kills the compressor?
I have read through the discussions from the past year. All people say is that the compressor will die... not what condition besides running too much. Is it due to overheating?
Nobody that I have seen has said how long it takes for it to die or has any records posted from their personal experience.

Mine was running most of the time due to the fridge insulation being crappy. And it was very much overheated. Adding a CPU HSF to it keeps it cooled off just like it would keep a CPU from overheating and wearing out. Wouldn't this idea be useful in a fridge cooled pc setup?
They die because they are not meant to work on all the time.
Fridges aren't supposed to cool active heatsource.
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