nateman_doo
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DIY LN2 POT
Not sure who remembers my last pot, which was just a copper sweat cap & pipe, I decided to improve upon the design. The pot lacked any real mass at all to combat rapid temperature swings. here That being said I looked up my local copper supplier and got a solid copper plug, 2" diameter, by 2" thick.  Then I took a 2" sweat cap, and cut off the top of it to make a lip for the hold down bracket.  Not much to it is there? Nope. Now to increase the surface area, while still retaining overall quantity of mass:  Marked out 1/4 20 holes and threaded it. All the holes go over 1.8" down into the core. I can't tell you how long that took to drill almost 2 inches in, but it took almost a day for that task itself. (just your average drill press was used)  Then it all came down to soldering everything together:  Then we clean it up a little and lap it:   Hard to see, but all those holes are threaded to increase surface area. Drilling the hole for the Thermal Probe:  Inserting the Thermal Probe: 
post edited by nateman_doo - 2010/06/01 20:15:59
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nateman_doo
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Re:DIY LN2 Pot
2010/03/03 07:06:20
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Here is the mounting brackets:  The overall pot:  Installed in a 790i:  AND MOST IMPORTANT.... the temps: 
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Q56_Monster
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Re:DIY LN2 Pot
2010/03/03 07:54:55
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Amazing!! You tested it w/ LN2?
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joeylasketti
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Re:DIY LN2 Pot
2010/03/03 08:14:43
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Nice job nate, this must be what you were talking about in chat last night? My newest revision is still on the drawing boards, but I will send you some sneak peaks when we begin construction. Good job man!
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Rudster816
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Re:DIY LN2 Pot
2010/03/03 08:18:52
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How much this thing cost you? And more importantly how much would it cost me  Those temps look good. -60c is much better than what you were 
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nateman_doo
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Re:DIY LN2 Pot
2010/03/03 10:28:48
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LN2 is the ONE THING that is missing from the whole equation, this was temps with DICE. I measured the actual DICE chunks by sticking that very same thermal probe into the chunks and they measured -72°C.  Considering the 10°C increase in temps from natural temps of DICE, I would say this pot is uber success. The previous pot did I think -40ish°C If I only had a dewar id be cooking with gas....err liquefied gas :P that temp was taken with the thermal probe wedged between the bottom part of the pot (not the part that touches the CPU, but that semi-round area) and the foam that insulates the cpu. I would imagine a more accurate reading (and colder) would be read from the hole that I just put in the actual base of the CPU. The really nice thing is that I couldn't "cold bug" the Q6600. I could just completely fill up the pot with dice chunks and walk away for a few minutes to go to the bathroom, or tend to a crying baby etc...
post edited by nateman_doo - 2010/03/03 10:43:03
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Demonik5150
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Halo_003
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Re:DIY LN2 Pot
2010/03/03 11:45:52
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Woo sweet! But I'm very curious, as Rudster said, how much did it cost?
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nateman_doo
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Re:DIY LN2 Pot
2010/03/03 12:22:30
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everyone cares about the bottom line eh? the copper core was around $50 The pipe you have to check with your local pluming supply. The sweat cap (what is now the collar) was $7.00 at Lowes.
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Q56_Monster
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Re:DIY LN2 Pot
2010/03/03 12:35:41
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Retail price $250
Evga member special $200
Get it into production, and plenty of profit left over for you-know-who!
Also, seriously you should apply for patents on your creations.
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ShockTheMonky
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Re:DIY LN2 Pot
2010/03/03 13:50:07
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I knew it. nateman is a stone cold pot head.
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owcraftsman
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Re:DIY LN2 Pot
2010/03/03 14:50:52
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Seriously sick nateman! I about dropped a nut when I saw the nateman avatar in the reflection of the pic showing off your lapping prowess.
Yep your a sick puppy but I love it.
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nateman_doo
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Re:DIY LN2 Pot
2010/03/03 20:29:24
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thanks! i'll try to take some more pictures soon. trying to get my X58 back in business.
Now if only someone had a dewar laying around...
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nateman_doo
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Re:DIY LN2 Pot
2010/03/04 04:58:41
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The copper core was also the purest copper available. Ultra-Conductive Copper 99.99% (Alloy 101)
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johnksss
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Re:DIY LN2 Pot
2010/03/04 09:18:16
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can i get mine retrofitted?
that one looks damn nice there!!
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nateman_doo
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Re:DIY LN2 Pot
2010/03/04 09:36:20
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we'll have to talk offline about that one ;)
This is 775 specific... BUT, if you look at the mounting plates you can see multiple holes so lets say it also works for the i7 socket.
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johnksss
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Re:DIY LN2 Pot
2010/03/04 09:38:25
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but of course...lol
got me a 775 board as well...but it's a dud. going to look for a better one in a few.
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Halo_003
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Re:DIY LN2 Pot
2010/03/04 10:02:32
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nateman_doo
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Re:DIY LN2 Pot
2010/03/04 10:42:29
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blockman nate for hire
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johnksss
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Re:DIY LN2 Pot
2010/03/04 10:52:11
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oh yeah...i see a few things...like that dual bracket and that readjusted bottom.
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nateman_doo
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Re:DIY LN2 Pot
2010/03/04 10:55:58
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I only milled out so that I have a 1.25" x 1.25" square bottom. that drill bit was the middle one I posted in that pick. 1/32" i think
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RBIEZE
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Re:DIY LN2 Pot
2010/03/06 05:49:12
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They say opposites attract. I hope you meet someone who is good-looking, intelligent, and cultured. http://www.youtube.com/watch?v=W2WsPN-rr9o Evga X58 4Way sli,W'Cooled i7 950 @3.8, Mushkin redline mem @6-7-6-18 1600Mhz, 2-Evga GTX770 Sli, Evga Gtx460 Physx, Corsair Neutron 120GB SSD,Samsung 240SSD, W.D Black 640GB /Corsair TX950 Psu, Hanns-G 28" Lcd, Logitech G540 5.1 Surround My Affiliate Code: EECLVEDV7Z 
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nateman_doo
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Re:DIY LN2 Pot
2010/03/08 04:53:59
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thanks! I brought it to work to play around with & make some new foam cutouts. probably pics to follow.
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nateman_doo
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SniperOZ
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Re:DIY LN2 Pot
2010/03/10 22:09:32
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 Out standing nate you are the King
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nateman_doo
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Re:DIY LN2 Pot
2010/03/11 04:38:11
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baahhh! there are others better then me, but thank you! I just wish I had some LN2 to test this sucker 
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mikotan
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Re:DIY LN2 Pot
2010/03/28 22:56:11
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Thats some crazy work Nate.
Awesome stuff!
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nateman_doo
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Re:DIY LN2 Pot
2010/03/29 04:41:49
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roast
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Re:DIY LN2 Pot
2010/05/02 05:40:46
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That is savage! Have you tried/planned to use LN2 on it instead of DICE? It'd be pretty interesting...
What did you OC the CPU to during the testing? And how hot did the northbridge get?
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OV3RCLK4
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Re:DIY LN2 Pot
2010/05/04 12:13:04
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Just curious about how you stop condensation from forming around the cpu and on the back of the board. Ive never read up on extreme cooling so I have no idea how they stop the condensation from happening.
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