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Where to get liquid helium and is it expensive?

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post #1 of 34 (permalink) Old 04-29-2011, 09:41 AM - Thread Starter
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title basically says it all... i am assuming i can use my regular ln2 stuff just with helium switched?

thanks

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post #2 of 34 (permalink) Old 04-29-2011, 09:44 AM
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Try a welding or scientific supply store/catalog.

However, it is very dangerous so tread with caution.

To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) Report, not respond to Spam (6) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular (7) Sequential does not matter as much as random for OS drives (8) Requirements come before hardware for servers

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post #3 of 34 (permalink) Old 04-29-2011, 09:44 AM
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He(l) is held at like 4K. That's REALLY cold...-269C. I don't know how much it would cost, but the equipment to keep it that cold surely would be expensive.

Check out my build-log including time-lapse movies of installation.


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post #4 of 34 (permalink) Old 04-29-2011, 09:45 AM
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You probably have to order it. Also it is extremely dangerous. It boils so fast at room temperature that you could suffocate yourself before you even know what hit you. Another thing is that it has such extreme surface tension that it will literally climb vertical surfaces (ie it must be contained). Needless to say you can't just poor it in a pot like LN2. The third danger is that its so cold that it would instantly burn you if you came into contact with it. Sorry to be a buzzkill frown.gif

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post #5 of 34 (permalink) Old 04-29-2011, 09:48 AM - Thread Starter
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wow... i didn't know it would be that dangerous... i thought it would just be colder than LN2...

maybe it will come with a containment unit that i can somehow use? any one use helium before?

EDIT:[ame="http://www.youtube.com/watch?v=2Z6UJbwxBZI"]http://www.youtube.com/watch?v=2Z6UJbwxBZI[/ame]

i want to do an experiment with it frown.gif

I am going to head to my chemistry department and ask for it? hopefully i can video tape what ever i do with it if i get my hands on it

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post #6 of 34 (permalink) Old 04-29-2011, 09:52 AM
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I highly doubt any person can just buy it, not to mention it boils far too quickly.

Flick of the wrist.


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post #7 of 34 (permalink) Old 04-29-2011, 09:52 AM
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Your going to need some serious gear for this. You will undoubtedly hit a cold bug. Not to mention you will need some serious containment gear to stop it from killing you. The best place to do this would be in a university lab environment with a protective suit, overhead ducts, and other proper safety precautions.

If I were you, I would not mess with it. Overclocking is not worth killing yourself over.


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post #8 of 34 (permalink) Old 04-29-2011, 09:52 AM
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Quote:
Originally Posted by badatgames18;13319704 
wow... i didn't know it would be that dangerous... i thought it would just be colder than LN2...

maybe it will come with a containment unit that i can somehow use? any one use helium before?

You'd have to get it with a dewer, you couldn't just store it in a fridge wink.gif

But it's so much colder than LN2, that most motherboards break when using it (even if you try insulating them).

Also, it boils very very quickly, I've seen a general idea that 250 litres gives you 90 minutes of benching time (250 litres is one of those big dewers full).

For where to get it, universities will have it (not sure if they'll sell it to you), or specialist engineering or laboratory suppliers will have it

However, as others have said, I'd advise against using it... Unless you are actually going for world records (and think you can achieve them), and are experienced at handling and working with liquid He4, then just stick to LN2

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post #9 of 34 (permalink) Old 04-29-2011, 09:54 AM
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Quote:
Originally Posted by badatgames18;13319704 
wow... i didn't know it would be that dangerous... i thought it would just be colder than LN2...

maybe it will come with a containment unit that i can somehow use? any one use helium before?

I've never used it for cooling but I've worked with it in a chem lab. My advice is to stay away. As people have said, it is very dangerous, especially at home without the safety precautions of a lab. Just use LN2. It is plenty cold. If you do work with helium, under no circumstances should you do it alone. Make sure you have someone there to help you and call an ambulance if something goes wrong.

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post #10 of 34 (permalink) Old 04-29-2011, 09:56 AM
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id say overkill lol, just get some LN2.. not like it wont do the trick lol

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