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LN2 pots in the making - Update with GPU pot action - Page 5

post #41 of 61
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Quote:
Originally Posted by CL3P20 View Post
Got that XP in 'diag' mode..16bit, maxmem ..all the usual goodies setup? I have been working on getting some good file sizes for copywaza to run, 1mil and 32mil... need to set up my bench OS on a fresh HDD and get some new ddr to bust into the sub-14sec category for ~3-3.3ghz range with my e6700...
Not tweaked very much. Actually just one of my main installs. I am tweaking my copy of server 2003, and xp pro though. I tried maxmem once, just crashing and need to play around with it more. my best 1m has most tweaks. gl with ur low clock spi!

Quote:
I am eager to see some fully tweaked benchies at 5.3ghz!
me too!!!:swearing:
    
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post #42 of 61
Quote:
I am tweaking my copy of server 2003, and xp pro though.
I have heard that 2003 is very fast bench wise..but have always had my best times on x64 pro+tweaks. Even just playing around, I manage better timed runs w/ x64, than with xp.. but I am narrowing that margin slowly.

ie- my 32mil hwbot submission @ 12min56sec got me a 4rth place here on OCN..that was at 3.9ghz running x64 with no tweaks and ~20 process running still. I have yet to best that time on xp..mod'd or not.
post #43 of 61
Thread Starter 
So another fast update:
Weekend was hectic, unfortunately no time for benching , with any luck some mid-week action though. What I did have time to do today was start another pot Learning maching is fun! so here is my attempt at a gpu pot:

little mishap on the right hole

Still in progress, needs extension and mounting, cleaning and lapping. A second pot is planned. Couldn't bear to have my cards so hot :
ETA: within a week - maybe 3-pot action this coming weekend if things are going smoothly with my schedule.
    
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post #44 of 61
hawtdog! Whos the man with the $$ for stock? Ouch, man.. I got good prices on stock, and I couldnt bear to buy enough copper for my ghetto pot! Aluminum isnt cheap either!!

Im sick with jealousy, cant wait to see some of that sauce in action! oowweee
post #45 of 61
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Quote:
Originally Posted by CL3P20 View Post
hawtdog! Whos the man with the $$ for stock? Ouch, man.. I got good prices on stock, and I couldnt bear to buy enough copper for my ghetto pot! Aluminum isnt cheap either!!

Im sick with jealousy, cant wait to see some of that sauce in action! oowweee
HEEEEEEE Haw!!!! we got a RodeOOO on our hands! hopefully LN2 for EVERYONE!! seriously though, the copper prices are outta hand. that is why these are aluminum. not bad really though, try onlinemetals.com, 20 clams was enough to get a piece of flat bar to fool around with. c'mon u can afford that!
    
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post #46 of 61
ohhmehgooo ..*wiping drool* thanks for the linky.. Im on it like a bad hair-due. I need ~ 3"x1"x3" for my base section and enough to make a cylinder ~7/8"dia.

I think I can swing it for sure. I will see if I can find the mock-up of my model..
post #47 of 61
Thread Starter 
np. whats the plan? cool the gt? how bout a volt mod , dimensions sound good, actually mine is thicker than it needs to be, and not wide enough. 3x1 or 3x1.25 if I started over. maybe if I make a rev 2.


Quote:
Originally Posted by CL3P20 View Post
ohhmehgooo ..*wiping drool* thanks for the linky.. Im on it like a bad hair-due. I need ~ 3"x1"x3" for my base section and enough to make a cylinder ~7/8"dia.

I think I can swing it for sure. I will see if I can find the mock-up of my model..
    
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post #48 of 61
Well here is the mock-up of the base section. I will be using aluminum for the stock to comprise the base section and riser.
Attachment 71303

That is the bottom and the riser, the unit will screw into a compressed gas cylinder [which will have the bottom removed] which will serve as the container for the LN2/DICE.

A few things I am sota fuzzy on here though..
- What is going to make a larger difference for temp controll.. the base thickness or the depth/amount of liquid? I have been doing a lot of research on these pots..it seems that overall thickness is the largest factor for tight temp control...but not to sure.

I plan on keeping a 3/4" thickness to the base, internally while a 1"-1 1/2" thickness on the outside..I figure with a hollow riser that has contact directly to the thinest part of the base..will allow for lowest possible temps. While the inside of the container will actually sit on the base section itself..it will allow for a secondary level of LN2 contact [chilling just the very top of the base section and the outside of the riser] that should be good for keeping the cold bug at bay.

I might have the rest of the week off after tomorrow, I will see if I can get some pics of the rest of the parts I have so far.

-input appreciated

*Forgot.. I have plans on benching a few cpu's.. got a fully mod's P5B-dlx I done-up for the occasion.. and am considering using my sig'd mobo as well. Here is the planned lineup so far..its going to be a mini-vacation when the pot is finished.. LOL: Q6600, E6700, E2180, E1200 [celly me thinks] and possibly a X3350 and my friends QX9650
post #49 of 61
This was my original design for an all copper, one piece. Prices are insane for the stock, so this has been on the back burner. Worse, I dont have access to a mill ...yet.

Attachment 71319
post #50 of 61
Thread Starter 
Quote:
Originally Posted by CL3P20 View Post
That is the bottom and the riser
is that hollow? dimensions? I am having trouble seeing exactly the whole thing unless it is the same as the pic in ur second post.
Quote:
What is going to make a larger difference for temp controll.. the base thickness or the depth/amount of liquid?
It is a trade-off between the two. The ability to quickly remove heat (controll temp swing), comes from the amount of material in the base especially. The ability to pull down and maintain a temp under a load for an extended period, you need a fair amount of coolant in contact with your pot.
The idea of a pole piece in the center is getting coolant close to the chip, while also having a lot of mass close to the chip with a lot of surface area exposed to the coolant.

Quote:
I plan on keeping a 3/4" thickness to the base, internally while a 1"-1 1/2" thickness on the outside..
I am sorry I am so daft, I am just having trouble picturing which parts of this pot will be solid. My advice is to keep it simple. You don't need a rocketship, and I am unsure of the cooling performance of the pot you propose. Something easier to make might give you less headache and more fun. Just me knee-jerk reaction to (my) lack of understanding.

Quote:
keeping the cold bug at bay.
so this term is used to describe a temperature at which a chip will stop operating. something like -110 to -150 C is the range I have seen 65nm/45nm intel chips stop responding/BSOD etc. being able to controll temp with LN2 by pouring a little, letting it evap, pouring a little more you can achieve pretty much any temp u feel like.
best
-serge
    
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