View Full Version : Liquid Nitrogen in Watercooling kit?!
Im not saying this would be needed or anything, but would it work? Wouldnt the pump freeze, cpu get too cold (heh, whoa....) etc etc..........
RedDeathDrinker
08-08-01, 05:31 AM
You don't need a pump, just sit a container of N2 on top of the CPU. As for too cold, the only problem would be condensation.....
How much is 5l of the shtuff anyways?
Rob Cork
08-08-01, 06:38 AM
You'd probably have to get some heavy-duty tubing to carry it, not just use the usual silicone stuff. I doubt that would hold up too well to LN2 temps!
DeltaSierra
08-08-01, 12:23 PM
I don't mean to preach, but if you're going to mess around with liquid nitrogen, be careful! The stuff is just plain dangerous. I've used it for freezing environmental samples, and it's a pain to buy, you need special containers to transport and store it, and everytime you transfer it from one container to another, the heat from the "new" container will cause the liquid to boil and spit and splash everywhere. Sorry for the soapbox.
Thanks for the tip, didnt think about that spitting out think :D
Hey guys I am slowly getting hooked onto the idea of ln cooling, where can I buy the shtuff and how much?
DeltaSierra
08-08-01, 12:31 PM
Here in the U.S., you can buy liquid nitrogen at most welding supply stores (bigger ones). I don't remember the cost, but they don't give it away.
Heh, well as long as its not in 100s+....
Im currently looking for a store that sells this stuff in the uk, any help would be greatly appreciated!
Boomerang
08-08-01, 03:38 PM
Check out welding supply shops. As to cost, it won't be too expensive. I know a guy who runs one of these shops, and he has offered repeatedly to give me a five gallon bucket of the stuff to play with, so it can't be that expensive. I would estimate that it'll cost you about US$20 for as much as you could ever possibly need. The only problem is that it will eventually evaporate away, and you will have to buy more. That is, unless you have some SERIOUS storage set up for the stuff.
I have been considering doing this for a while now too. Mabey I will now. :D
speedy4500
08-08-01, 08:15 PM
You can't have a CPU too cold, in fact I'll go so far as to say that it is impossible to get a CPU too cold. It is the nature of a CPU to perform better at cooler temps, even if it isn't overclocked. I think some people believe that a good heatsink is required only if you're going to overclock. This isn't true. A good heatsink will improve stability and lifespan of any CPU, overclocked or not.
As for LN2, over in Japan it is very very popular. But the computer cannot be run for long when it is cooled with LN2. From the pictures of the Japanese sites I have seen, they basically attach a huge container on top of the CPU, fill it with LN2, run the benchmark or whatever then stop. Usually the motherboard ends up covered in ice and there is a thick fog covering the CPU.
If you're looking for extreme cooling, find an industrial freezer, some of which I have seen can maintain -80 celsius (check out www.cszinc.com ). It will certainly be loud, big, and power hungry, but if you then strap a nice big TEC under there, you could get like -140 celsius for your chip continuously. But then you have to worry about condensation...
Thelemac
08-08-01, 09:34 PM
Actually, you can have a cpu too cold. At about -50C the internal structure starts to pull apart...since as it gets colder, the transistors and the like shrink...but after a certain point, either their anchors break or thier bonds to other transistors break. Sure, it'll work for a while, but sooner or later the bugger will stop for no apparent reason.
piffdog
08-08-01, 11:02 PM
In response to DeltaSierra's post, I must say. Yes! do be carefull, but heres a tip for the the cpu cooling device. Before you pour the LNO2 on it keep it in da freezer for a few hours (and keep the freezer maxed out) so as to minimalize the boiling and splashing.
-piffer
:)
Ok, Im just kinda curious about something and it looks like a few of you know some things about LN... If it is inside an inclosed container and it is heated, say it sat outside on a hot day... does it loose its cold? or? whatever? If its inside a container and there is a gap on the inside, I would presume that it would evaporate. What happens to it since it is on the inside of an inclosed case? Does it re-liquify? And how long can this stuff keep its cold?
Im not stupid, but this is a product that I know little about. So Im just kinda presuming a few things about it. Which Im also presuming that Im wrong thats why Im asking. Well I hope this made sense to you, if not lemme know and Ill retry to explain it, hopefully with better results....
To be honest, I have no clue..... Its just that I have heard of a lot of people using this kind of setup (aluminuim box with ln2) perminently, so I feel kinda safe :D
And yes, my answers are very useful.....
Originally posted by Boomerang
Check out welding supply shops. As to cost, it won't be too expensive. I know a guy who runs one of these shops, and he has offered repeatedly to give me a five gallon bucket of the stuff to play with, so it can't be that expensive. I would estimate that it'll cost you about US$20 for as much as you could ever possibly need. The only problem is that it will eventually evaporate away, and you will have to buy more. That is, unless you have some SERIOUS storage set up for the stuff.
I have been considering doing this for a while now too. Mabey I will now. :D
Yeah, its very intesting, heh. Where I have 13 fans to help keep my cpu cool at 41c idle, which also makes my comp sound like a train arriving, I can have a box with this shtuff in it that will keep the cpu at -190c, which makes _no_ noise.
Hell, I dont know why I didnt try this earlier.......
Im not stupid, but this is a product that I know little about. So Im just kinda presuming a few things about it. Which Im also presuming that Im wrong thats why Im asking. Well I hope this made sense to you, if not lemme know and Ill retry to explain it, hopefully with better results.... [/B]
LN2 is only cold if it as allowed to evapourate. If you kept it in a sealed high pressure container it would warm up to room temperature. if you put it in a regular water cooling system it would literaly blow it up as it gassed off.
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