Where can I find a l2n cooling guide? - Overclock.net - An Overclocking Community

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Where can I find a l2n cooling guide?

 
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post #1 of 5 (permalink) Old 02-07-2013, 07:56 PM - Thread Starter
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Hello everyone.

My friends and I are toying with the idea of trying out liquid nitrogen cooling, just to do a "suicide run" sometime. I do have overclocking experience, but not with liquid nitrogen.

I've searched around a bit, but can't seem to find any guides for beginners on how to go about doing this. Can anyone point me in the right direction?

And three bonus questions:

1) Assuming we don't want to use our own components, what cost are we looking at to do this? Price including all the liquid nitrogen and computer components. Do we need top of the line components?

2) What computer components will be usable after doing this? Probably not the processor/mobo yeah?

3) i5's/i7's usually have a multiplier limit. What are the best processors to do this with?

Thanks for any help.
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post #2 of 5 (permalink) Old 02-07-2013, 09:36 PM
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There isn't really a full beginning to end guide that I know of, bass' guide here is a good starting point https://www.overclock.net/t/1087013/start-subzero-cooling-for-under-200 , there are a few other threads for new sub-zero coolers question & answer.

Price really depends on a lot of things, read bass' guide first & you will have a better idea. Top of the line hardware isn't needed (unless going for overall world records), although a good motherboard does make subzero easier.

If done right all components should be reusable afterwards, but for first time freezing cheap hardware is nice, if you do have a mishap, less money out of pocket.

Currently the 3570k/3770k is the weapon of choice for intel & ln2 (3770k tends to be better bin). They do have different max frequencies, finding a great chip isn't easy. Pretty much all processors are good to freeze, except the sandy bridge & sandy extreme chips, they just don't really like the cold.
Chips with an unlocked multi are better/easier for max frequencies.
Don't forget AMD, they don't score as high in benchies, but can be more fun to freeze than intel & are great for frequency validations. Most don't have coldbugs/boot bugs the way many intel do either.

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post #3 of 5 (permalink) Old 02-07-2013, 10:40 PM - Thread Starter
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Thanks for the info.

So I guess our best bet is to just watch a bunch of videos and try to replicate it as best we can?

A couple more questions, if you don't mind.

1) When you first start, like when you originally boot it up, do you just have no heat sink on it, or is putting liquid nitrogen on it at stock voltages safe? If not, at what point do you start using the liquid nitrogen?

2) Do you need a graphics card? I would think no because most processors have integrated graphics already these days, unless we need to turn that off for this, for some reason.

3) Does Intel's processor insurance (the one you can get for like $25) cover this, or is l2n cooling not covered?

Thanks again. If anything we will just go in blind and experiment a bit.

Oh, and that guide was VERY helpful. Thanks for the link thumb.gif
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post #4 of 5 (permalink) Old 02-07-2013, 11:21 PM
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First boot I usually start up at stock with the pot mounted, no ln2 in it, just ambient temps. If it stops right way with a memory error or something it's easy to just stop & remount the pot (if it was too tight).
If no errors I put in a splash of ln2 & let it get to bios & check the temps (making sure it isn't too loose & temps aren't going up too fast). If all is well I start pulling it down & overclocking.
With chips you've never frozen before, you have to watch for coldbugs (it can bug out in windows at -xxx temp, but be fine just a bit warmer), & cold boot bugs (it just will not boot at -xxx temp, have to warm it up to boot).

It doesn't really need a discreet gpu, I usually use one anyway though. I have an old 6800gt for 2d benching, or a high end card(or cards) for 3d benching.

I don't think the insurance was really meant with ln2 overclocking in mind, although it kinda has to be the users discretion.

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post #5 of 5 (permalink) Old 02-12-2013, 11:00 PM
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Kingpin - a major LN2 pot manufacturer and overclocker - has guides on how to set up his gear in the latest issues of "the overclocker" an online magazine.
search for it and you'll find it.

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