Ln2 bench rig

[chilly1]

This is For Ln2 and DI. This is only the start Just got these back from the polisher today... Base is 18 GA stainless and the Bridge is 1/2 inch Welded and polisher to a #8 finish. (Mirror)

http://www.blairwing.com/images/k%7cngp%7cn/KP1.jpg


http://www.blairwing.com/images/k%7cngp%7cn/KP2.jpg


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33936&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33944&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33943&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33942&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=34359&stc=1

[bachus_anonym]

:slobber: Just like Japaneese do it :woot:

Looking really good, Reggie!

[justwOo]

Can't wait to see the final product
Pardon my ignorance, but whats the metal arch for?
Seems to be the same as what kingping has been doing with sandwiching neopreme between the mobo and wood
Thats nice spacing for the easy mounting on the bottom though

[gloatlizard]

damn i want it!

[QuikSilver]

Very nice man! Cant wait to see that baby in action, break some WRs now!! :banana:

[harleybro]

Very nice chilly1 Like the arc press. Is it goning to be tapped and have a large bolt for a hold down also? Are these going to be production units? I had contacted teamjapan about getting one but they are out and not sure when the next production run will be. :(

[evil_raver]

great....!!!!
it looks beautiful too.... :)

[Apocalipsis]

:eek: Impressive work there Reggie, as usual with all your creations. Will be nice to see a full rig installed with cpu pipe.

[alexio]

Can't wait to see the final product
Pardon my ignorance, but whats the metal arch for?


It's for supporting the LN2 (and maybe dice) tubes.


The polishing Looks very cool :fact:

[conrad.maranan]

I want one for Christmas, Reggie. :fact: :cool:

[Waus-mod]

Looks nice chilly1, want to see it in action ;)

[gloatlizard]

you will sell that?there is a system in order to press on the system?

[chilly1]

UPDATE
http://www.xtremesystems.org/forums/attachment.php?attachmentid=33936&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33944&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33943&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=33942&stc=1

[gloatlizard]

what a hellish system bro lol:D

[chilly1]

Here is the metering device I am sending later in the week for the continious flow Ln2 adapter. This is only teh needle and the micrometer handle.. all stainlessteel..

http://www.xtremesystems.org/forums/attachment.php?attachmentid=33947&stc=1

[giorgioprimo]

signed in

[Jack]

damn that frickin' nice :toast:
you should be able to beat some japanese guys with that :D

[harleybro]

Very impressive chilly1 I love the metering device idea. :slobber:

[GuGaCoSa]

Would a CPEV work as a metering device in LN2?
Yes but if it opens to atmosphere you would need to have a 1/8 tube 4 to 5 feet long as the metering device and the PEV as the infeed regulator. Most PEV's will freexe up..

[esdee]

Would a CPEV work as a metering device in LN2?

that would be a literally COOL CPEV :D

[GuGaCoSa]

Hehehe if it work it would be great to adjust,maybe 3/8 or 1/2 inline with a 1/8 outlet directly in the center of the base of container

[BB mods's]

Now let's get that bad boy acid etched Chilly :)

[Waus-mod]

Damn thats a wondfull thing chilly... im impressed!

[Master_G]

Bling benching, whatever next? :p:
Looks seriously cool, cant wait to see it in action.

G

[vegeta]

I noticed that Vtec ARC bed has a stud in middle. To hold the container in place.
But doesn't influence the temp? Cos the stud is on the place where the CPU is located. Or does that stud (container hold-down) has a metal hollow cirkle profile on the end of it?

[IYP]

Nice man....i cant wait to get together the money to start up with LN2....hopefuly this new company will bring that kind of money in....hopefuly....lol

CNN in 5 years
"Rage Computer has officialy declared bankrupcy. The owner has acredited this tradgedy to his time and money consuming hobby of overclocking." :D :p:

[MaxxxRacer]

vegeta, i think the base plate is thick enough to disperse the heat from the cpu evenly so this does not become an issue. if the base was super thin ( a few mm) then this would become much more so an issue.

[urbanfox]

What is the advantage of this vs just using a container with a holddown with screws?
Does it have some sort of path from dewar>cpu container @ so low flow rate so you don't need to constantly refill? (got that idea from above posts, sorry for being noob :/)

[Apocalipsis]

I was asking myself the same, plz Chilly1 or someone can elaborate a bit over this project?

[harleybro]

I believe the presses are for ease of installing differant tubes. Alons with that they put direct pressure on the core. Correct me if I am wrong it's just what I thought of them. BTW still wondering if any of these will be FS. :)

[chilly1]

I believe the presses are for ease of installing differant tubes. Alons with that they put direct pressure on the core. Correct me if I am wrong it's just what I thought of them. BTW still wondering if any of these will be FS. :)
Exactly..The pressure is right in the center.

[chilly1]

Finally got the bugs worked out.

http://www.xtremesystems.org/forums/attachment.php?attachmentid=34360&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=34361&stc=1

[bachus_anonym]

Reggie,

When are you guys gonna test it? It looks really good :toast:

[vegeta]

Looks great :woot:
How did you modified that C-Clamp (the one that looks like a gun)?
Saw more teeths in the long bar?

[Flexkill]

DUDE!!! :slobber: Thats XTREME...awesome man :clap: :rocker:

[harleybro]

Very cool idea with the quick clamp! :toast: Lovin it and waitin to see some benches!

[chilly1]

Here is the threaded Rod holddown This will be going to kingpin today...


http://www.xtremesystems.org/forums/attachment.php?attachmentid=34604&stc=1


http://www.xtremesystems.org/forums/attachment.php?attachmentid=34605&stc=1

[waddupmm]

Beautiful :clap:

[Waus-mod]

Kinpin is one lucky guy, Awesome finish chilly

[rhino56]

i cant wait to see this thing in action :slobber:

[G H Z]

Damn that's beautiful Chilly, I'm sure he will put that to good use. Now all it needs is a chromed cam driven hold down rod ;)

[k|ngp|n]

Quick mock-up with solid container and p4c800 and everythig fits nicely. Tons of adjustability, yet extremely solid and durable. Exactly what I wanted.
Will be benching some sli/ln2 soon on it...

http://pic8.picturetrail.com/VOL256/1324330/7356826/105668544.jpg

http://pic8.picturetrail.com/VOL256/1324330/7356826/105668541.jpg

http://pic8.picturetrail.com/VOL256/1324330/7356826/105683581.jpg

http://pic8.picturetrail.com/VOL256/1324330/7356826/105668522.jpg

http://pic8.picturetrail.com/VOL256/1324330/7356826/105683859.jpg

http://pic8.picturetrail.com/VOL256/1324330/7356826/105668621.jpg

[HARDCORECLOCKER]

:D Oh chilly - looking so beautiful though without the MOBO it reminds me to the nasty machine they used for cutting heads in France some hundred years ago......... :p: :p: :p:

:toast:

[twilius_basic]

:D Oh chilly - looking so beautiful though without the MOBO it reminds me to the nasty machine they used for cutting heads in France some hundred years ago......... :p: :p: :p:

:toast:

Guillotine :D

Nice looking setup there Vince, looking forward to your findings with it :)

(PS: Sorry for overreacting the way I did a few days ago, after some surgery to the gfx card I think it "may" be ok.... we'll see...... sorry for freaking out like I did)

[HARDCORECLOCKER]

Guillotine :D

Nice looking setup there Vince, looking forward to your findings with it :)

(PS: Sorry for overreacting the way I did a few days ago, after some surgery to the gfx card I think it "may" be ok.... we'll see...... sorry for freaking out like I did)

:D THX - didn't know how to write correct in english........... ;)

:toast:

[G H Z]

You should leave that out on the table like that and have a party (not the kind where :banana::banana::banana::banana: gets broken).
Everyone would be like wtf? ;)

[urbanfox]

You should leave that out on the table like that and have a party (not the kind where :banana::banana::banana::banana: gets broken).
Everyone would be like wtf? ;)

You have friends who don't OC
:stick: :slap:

[k|ngp|n]

Guillotine :D

Nice looking setup there Vince, looking forward to your findings with it :)

(PS: Sorry for overreacting the way I did a few days ago, after some surgery to the gfx card I think it "may" be ok.... we'll see...... sorry for freaking out like I did)

Guillotine indeed will. Orb guillotine. Guess what I am going to use for my threaded rod handle at the top? :)

No sweat about the card dude.

[Jort]

electronic device controlled by a 2nd pc to adjust the pressure of the rod?

j/k

tell us:)

edit:

THe skull :slobber: ?

[chilly1]

Be careful with that Ln2!

[justwOo]

An orb guillotine

Oh snap, what a pun :)

[n00b 0f l337]

Splash a little on your northbridge while your at it. :)

[afireinside]

If you use that skull on the top of the rod you'll be my overclocking hero :lol:

The arc looks VERY nice, I can't wait to see if/how the direct pressure over the core effects your overclock!

[harleybro]

Really looking forward to results gl w/ your runs kingpin!! :toast:

[k|ngp|n]

If you use that skull on the top of the rod you'll be my overclocking hero :lol:

The arc looks VERY nice, I can't wait to see if/how the direct pressure over the core effects your overclock!

Guess who's your new hero.. ;)
The added pressure right over the core is great.
For me, I think the main advantage of the press is that there is no need for holddowns. This is key, as when working with ln2, you will get tons of condensation and ice where the inuslation is weak. The holdown area is always my worst spot. With one straight tube of 3/4 insualtion, I have eliminated all cond problems in that area. Of course your contact will be perfect everytime as well and there is less chance of damging a spreader-less chip with a crooked mounted container. For Dothan, the obvious advantage is no more need for the p4c mounting bracket :banana: and all the insulating issues that came with that.

[vegeta]

@ k|ngp|n: Can you tell me, when do you know you have to stop turning? So you don't crack the core. Is there a spring in the rod holddown to prevent crushing?

[Waus-mod]

well the core has some apllied neopreen or a pad next to it so it wont crack, but to many pressure will crack it indeed. but i think you will know when it is tight!

[vegeta]

well the core has some apllied neopreen or a pad next to it so it wont crack, but to many pressure will crack it indeed. but i think you will know when it is tight!

I don't think neoprene is needed here.
Cos you put the pressure directly on the core. The container will always be horizontal.


I want to make one myself. I'm just not sure what kind of metal I'm gonna use for the arch.

[G H Z]

Seem to me that the rod might shrink a little @ LN2 temps causing a little less pressure.

[k|ngp|n]

@ k|ngp|n: Can you tell me, when do you know you have to stop turning? So you don't crack the core. Is there a spring in the rod holddown to prevent crushing?

No spring, but thats a good idea. I was thinking the same thing, maybe the rod slides through the block smooth no thread and a nice thick spring could load up a little as you crank it down.
The stainless is good tho, and gives just the right ammount of flex for a little spring action. You really have to overturn the rod alot to crack a core.

[afireinside]

I knew it would make insulating a lot easier but I guess what I'm asking is will the direct over core pressure give better thermal transfer and thus higher clock speeds?

I think the motherboard would shatter into pieces before the die on the CPU cracked, especially with direct pressure. Last DI run I ditched my plywood back plate and tightened my tube to the point where the board was about to snap in two and the die was fine. Then again it was a clawhammer which is quite a bit larger than a dothan die...

[Waus-mod]

Hmm how tight do you wanne get it then :P tight = tight.. no screw less or more!

[k|ngp|n]

I knew it would make insulating a lot easier but I guess what I'm asking is will the direct over core pressure give better thermal transfer and thus higher clock speeds?

I think the motherboard would shatter into pieces before the die on the CPU cracked, especially with direct pressure. Last DI run I ditched my plywood back plate and tightened my tube to the point where the board was about to snap in two and the die was fine. Then again it was a clawhammer which is quite a bit larger than a dothan die...


I think with the rod, you will probably get your best contact that is possible...which in theory could lead to the best thermal transfer resulting in higher clocks.
With a container that weighs nearly 5lbs, imo the press/arc is probably the best way to ensure 100% proper contact every time just about.

For me the advantages were to be more functional than for better clocks, but I'll take the clocks too if I end up getting more out of it.

[vegeta]

What's the best container design for an arc-bed?
One thing is for sure, the bottom must be flat in oder to work with the rod. So the one with nails, heatsink look-a-likes, holes in the bottom won't work or be efficient enough.

Have you tried an other container than the solid one of MickeyMouse?
I assume the Chilly1 container will be too tall for the arc. But i think that container will have the better result than the sollid ones. Cos it has surface increasement on top of the core.
And the top-platform of the Chilly1 block is flat so the rod can be used w/o interfering the spot above the core. The full cooling capacity of the Chilly1 block can be exploited :D.

Maybe you can shorten your Chilly1 container :slap: and try it :D, just an idea :p:

[Jort]

its proven solid container is better with ln² then the chilly1 tube:)


What's the best container design for an arc-bed?
One thing is for sure, the bottom must be flat in oder to work with the rod. So the one with nails, heatsink look-a-likes, holes in the bottom won't work or be efficient enough.

Have you tried an other container than the solid one of MickeyMouse?
I assume the Chilly1 container will be too tall for the arc. But i think that container will have the better result than the sollid ones. Cos it has surface increasement on top of the core.
And the top-platform of the Chilly1 block is flat so the rod can be used w/o interfering the spot above the core. The full cooling capacity of the Chilly1 block can be exploited :D.

Maybe you can shorten your Chilly1 container :slap: and try it :D, just an idea :p:

[speed bump]

Now that I see how this works I really like the idea. I think I may have to attempt my own. It looks awesome anyway.

[k|ngp|n]

Now that I see how this works I really like the idea. I think I may have to attempt my own. It looks awesome anyway.

So far testing points to the arc/press getting better BIOS temps vs. container temps then traditional style holdown. I have switched back and forth from the arc to the regular holdowns now for 2 days of testing to try and see what differences if any there are.
With arc I can get a few degrees colder on bios temps than I can get with the holdown/springs AT A SET CONTAINER TEMP.
I also noticed that if I run at -160 and below for extend periods, I lose my contact and need to re-tighten the rod a little bit to get it back. There is definitely some thermal contraction/expansion going on there.
Some action pics from last few days.....

On p4gd1
http://pic8.picturetrail.com/VOL256/1324330/7356826/106411527.jpg

This is about as bad as the condensation/frost gets...this is after hours...
http://pic8.picturetrail.com/VOL256/1324330/7356826/106411525.jpg

DFI nf4 with a 3678mhz fx-57..:banana::banana::banana::banana:ing fx could not run below -69c no matter what. At -65c, it's stable for 2d and 3d at 3660mhz or so. Not really impressed. Maybe I am asking/looking for too much out of these chips..LOL. I was hitting almost 3600mhz for 3d with a fx-55@ -80c almost a year ago :)
I'm thinking intel for sli now. Intel and Pentium M have spoiled me. Cold bugged chips are so booooring. Maybe some really sick clocks on ln2 can make up for the performance differences in SLI between AMD and INTEL.

http://pic8.picturetrail.com/VOL256/1324330/7356826/106411529.jpg

[PoL]

Cold bugged chips are so booooring.

lol

Has anybody ever been able to run an AMD below -100º?

[k|ngp|n]

lol

Has anybody ever been able to run an AMD below -100º?

Sure top jap's...TOM HOLCK..OPB....and others I'm sure. I have benched with a fx @ around -90c.

-95c seemed to be the the sweetspot with the fx-55 sledge's.....especially the early ones(0432-0438) Memesama and other pro jap overl:banana::banana::banana::banana:ers were running those chips on ln2 at 3700mhz.

I am not looking for below -100c anyways...-90c would be just fine :)

[Waus-mod]

Nice results with the arc kingpin... But As you said the expansion of the rod is a little bit bad, but who cares if you control it once in a while. I assume youre happy with the arc?

[chilly1]

its proven solid container is better with ln² then the chilly1 tube:)

Actually it still is only dependant on contact pressure. The major advantage is hang time. With a solid container you don't have to add Ln2 as much due to the mass. However the large mass also means that under load the base temperature will be higher. As we see with thick copper blocks there is still some thremal resistance and a temperature delta. But with a need to not run the processors at absolute lowest values this is not a problem. SO both containers have their advantages.

[runmc]

I never had much luck with the clamps you squeeze. I prefer the screw type clamp. There comes a point with the squeeze clamp where you can't tighten it any more.
I'm making my homemade arc ATM with a screw rod with a piece of teflon at the end of the screw to make contact with the container base. Hopefully this will eliminate shrinking of the screw rod.

I remember Fugger making a comment about the baker block as compared to the Chilly1 block. Fugger himself said the advantage to the Chilly1 block was the fact that it was solid and didn't have the braze joint which gave you a heat transfer lose. Shouldn't this hold true with these LN2 containers?

Jason and I have 20 of these on order. I will be testing mine next weekend with the screw type hold down. I'm gonna ask Vince for LN2 training. :p:

http://www.teampuss.com/runmc/Under%20the%20Ice%20Store/copyright%202005.jpg

[k|ngp|n]

The arc is rockin'....getting better with adjustments and pressure at max temps.
Worked hard all day to make 19 sec club super pi 1m, and I finally got it on my last run at only 3900mhz/1.72v(1.74 actual). I believe this chip has 18 seconds in it. That's my next goal :) Once I get ovp dialed in right on my lucky p4c, I should have it.
780es
p4p800-e
buffalo tech bh-5 pc3200
ocz 600watt

19 sec cpuz validated
http://pic8.picturetrail.com/VOL256/1324330/7356826/106473288.jpg

Picture of the rig after about 5 litres of ln2 and a few hours of hammering :)
This 780 has taken some xtreme punishment and it keeps on goin'....strong chip.
http://pic8.picturetrail.com/VOL256/1324330/7356826/106473910.jpg

[runmc]

Man that is so nice looking. I am major jealous Vince. :woot: You certainly have it all dialed in.

Do you have the screw rod directly against the bottom of your solid container?

[IYP]

NICE!....cant wait to start with LN2....but sadly im strill raising money for it

[afireinside]

Looks good, nice Pi time :) I need to figure out where to get ln2...

[Jort]

nice ln² benching kingpin :banana:

looking forward to your 18sec run :slobber:

[chilly1]

I remember Fugger making a comment about the baker block as compared to the Chilly1 block. Fugger himself said the advantage to the Chilly1 block was the fact that it was solid and didn't have the braze joint which gave you a heat transfer lose. Shouldn't this hold true with these LN2 containers?


There are a couple of factors at work here. THe solid cooling portion of the chilly1 block is only in the center of the Ln2. You lose temperature the thicker the copper base meaning that if you have a 10 mm thickness and a full liquid Ln2 covering both containers and those under full load you will find that the container with the thinnest base will have the lowest temps. As Liquid nitrogen does not get copper to superconduction temperatures there will be a delta and the thicker the base the bigger the delta/ That said stability is another big factor and more mass means more stability.. How much is nessassary depends on cooling fluid supply/ There is also the issue of cold boot issues.. Containers that are filled by hand that have a large mass will be more stable..
SO as to solder joints and Ln2 containers.. the copper container is not used to cool at all.. and this is true in either container. the simple fact thet all teh extra copper is too far awaty from teh processor to do any cooling.

[harleybro]

awesome work kingpin! :slobber: Can we expect any 3d action now that your getting it dialed in better?

[Waus-mod]

Looking awesome, superb results and as jort said, im also looking forward to the 18s

[k|ngp|n]

Man that is so nice looking. I am major jealous Vince. :woot: You certainly have it all dialed in.

Do you have the screw rod directly against the bottom of your solid container?

Thankfully, there is a nice little gouged out hole forming in the bottom of the container for the rod to jam down on. This is working way better than the big ass oversized/"wrongsized" hole that was there to begin with :)

The titanium is prolly a good idea ron....have you checked to see if titanium is changed at all molecularly at -185c? The loss of contact/pressure is definitely happening every session, though I can't for 100% sure nail down what is causing it, indications are leaning toward the threaded rod at xtreme temps.


awesome work kingpin! :slobber: Can we expect any 3d action now that your getting it dialed in better?

Really can't do anymore for 3d with a single 7800...03 and am3 single card WR..... I would love to take down shams amazing single card score and go for 12k 05', but it's not happening with either of the cards I have. Neither will go below -60c without throttling clocks down. I should be able to run them both in SLI @ -55 to -58c at my weakest card's clocks 694/1494...maybe with 670 prescott/p5nd2/corsair 5400 ul ddr2

01' benching has become a joke to me with the new cards. Too proud of my 45k x850 score to trash it with a silly tweak that gives massive points....nothing else to say about that.

I really want 18 sec sp1m bad now, maybe even break into the 30.** for hexus pifast. My focus and work will go into 2d apps 100% for now.

[Waus-mod]

And i wish u succes, because all the time i see a pifast record it is or will be you ;) :banana:

[k|ngp|n]

And i wish u succes, because all the time i see a pifast record it is or will be you ;) :banana:

Did you see New beetles pifast score?? This is the new WR.... WOW....absolutely incredible. These guys are the best 2d overclockers in the world no doubt about it....
http://premium1.uploadit.org/fredyama//pifast3D2927S-by-New-Beetle.gif

[crotale]

OMG, congratz kingpin! Truely amazing!

[Waus-mod]

I dont know if you have a volt loving chip, if it is than you still have an 0.1v left or so.... It will be possible to get 30.xx i know you ;)

[k|ngp|n]

I dont know if you have a volt loving chip, if it is than you still have an 0.1v left or so.... It will be possible to get 30.xx i know you ;)

I ran some sp 1m on this chip when I was doing my p4gd1 3d runs and I was passing at 3.96ghz with up to 1.87v... It seemed to wall there but I never really tried much to go higher with the volts. THis chip loves around 1.86v.

The ovp on these boards is so funny....when it trips the system shuts down and the adp3180 or some other mobo component starts a high pitch sqeal and doesn't stop until you turn down the vr :)

[Waus-mod]

Thats no good, do you allready have an ovp mod to do? and is there also an ovp mod for the p4p or p4c?

[chilly1]

[QUOTE=k|ngp|n]Thankfully, there is a nice little gouged out hole forming in the bottom of the container for the rod to jam down on. This is working way better than the big ass oversized/"wrongsized" hole that was there to begin with :)

The titanium is prolly a good idea ron....have you checked to see if titanium is changed at all molecularly at -185c? The loss of contact/pressure is definitely happening every session, though I can't for 100% sure nail down what is causing it, indications are leaning toward the threaded rod at xtreme temps.

well I could make a different hold down with a piece of spring steel so when the rod shrinks the spring will hold the tension better. Like a sleeve with threads and the spring holding it down..

Congrats on the scores//

Next generation Ln2 blocks are on the drawing board.. (Containerless benching)

Looks like the extra mass gives you real stable temps over the entire bench...

[Waus-mod]

Looking forward to see/hear about youre idea chilly1

[[XC] moddolicous]

Kingpin, can u PLEASE try running higher fsb with a lower fsb on you 780 dothan? Try like 15*260. I think the teamjapan was having a hard time running high fsb. Cant wait til u break 4ghz spi stable.

[ilkkahy]

As Liquid nitrogen does not get copper to superconduction temperatures
In what temps does aluminium start to "superconduct" heat and how big of changes are we talking about in W/(K·m)? Also does the aluminium type effect much on the performance? Should it be some other than 6000 series for example?

I started thinking of Ln2 container with very high aluminium rod on the centre and some kind of plastic pipe so there would be very little thermal loss and condensation problems. Also base from simple aluminium heatsink could be pretty effective. Using plastic pipe has always intrested me but obiously it wouldnt work with dryice. I wonder can pvc plastic take -200c at all?

[k|ngp|n]

Kingpin, can u PLEASE try running higher fsb with a lower fsb on you 780 dothan? Try like 15*260. I think the teamjapan was having a hard time running high fsb. Cant wait til u break 4ghz spi stable.

This is about as good as it gets for high fsb action. My 780es will not run high fsb over 3200 mhz or so with anything over 12x. Hard locks when clocks are set every time. Fsb will scale to the moon with 17 multi though, you just have to push the mhz hard. I suspect all 780es's are like this.
http://pic8.picturetrail.com/VOL256/1324330/7247576/105881687.jpg

[chilly1]

In what temps does aluminium start to "superconduct" heat and how big of changes are we talking about in W/(K·m)? Also does the aluminium type effect much on the performance? Should it be some other than 6000 series for example?

I started thinking of Ln2 container with very high aluminium rod on the centre and some kind of plastic pipe so there would be very little thermal loss and condensation problems. Also base from simple aluminium heatsink could be pretty effective. Using plastic pipe has always intrested me but obiously it wouldnt work with dryice. I wonder can pvc plastic take -200c at all?


Carbon fiber/ boron composite rod would be best.

[G H Z]

I'd go Titanium/stainless with as fine a thread as you can get, and only threaded near the upper end where the actual adjustment is made. Polish the rest of it.

I think the allthread your using now is just a low grade pot metal type (read higher expansion-contraction properties), and the coarse thread does not help things.

KP excellent work breaking 20 sec barrier, pretty soon your gonna need a Japanese nickname http://www.xtremesystems.org/forums/images/icons/icon12.gif

[Waus-mod]

Kingpin is it possible to run higher fsb with devider? 310x13 or so with 5:4, 4ghz with more mhz on youre mem!

[ilkkahy]

I meant aluminium rod to be used only in sense of cooling if it starts to conduct heat superbly in low temps. But how big thermal conduction differences there will actually be, in what temps and with what type of aluminium?

But to the mounting system. Spring naturally needs to be upper side of that fastening rod where its warm and there shouldnt be problems anymore.

I have used normal 4-bolt system on connecting waterblocks and heatsinks for ages without any springs but instead always sort of "backplate" and some soft material behind and never had problems. But i see this kind of fastening system will prevent condensation so its great.

[speed bump]

The bad thing about aluminum for doing really cold stuff is its hard to weld it well enough that it doesn't crack while being made really cold. I built some aluminum Dice tubes becuase I wanted to test whether the transfered cold to the CPU any better than copper. They benchtested fine with Dice however I stuck Ln2 in the tubes and one cracked around the weld and the other on the weld.

edit: I was looking for the equation to figure out expansion rates for copper and saw this article. Its fairly interesting if you wan't to figure out what kind of effiency your copper tube has at hilding in the cold.
http://www.pmengineer.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2732,88674,00.html

[mukmaster]

Wow thats realy cool

[LukeK]

the real question is, who do I have to kill to get one of these units..is this a prod. item or one off?...wouldnt be the worst thing in the world if I had to make it, but It sure wouldnt be polished thats for sure.

[chilly1]

I got parts for one more..

[hicookie]

great,i wanna ones