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The nC² project - UPDATED
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Looks beautiful my friend.
Keep us informed.
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Thats Perty
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Really nice build! Have you got some pics of the finished cooler?
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It isn't finish yet, we're waiting for the case to be painted and then the unit will be ready for shipping :D
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looking fwd for the final look
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when you are finnish, you must show some bench results
what GPU is it? and how much do thet material around the "hose" cost?
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GPU is clearly 8800gtx ;)
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NICE!! :toast:
damn thats a clean job
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That is some excellent work with the foam around the capacitors. How did you line things up so well?
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I cut Armaflex with standard scissor, and for the tiny holes ( capacitors for example ) I use a disposable scalpel :D
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very nice chill and back plate for 8800GTX :D
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Aluminium Back Plates made from Damsxx :D and his skill dad.
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I have post this pic already my friend :D
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It wasn't shown the last time :D
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It wasn't shown the last time :D
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Quote:
Originally Posted by
noobzed
i officially envy you now
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very clean, what did you paint the chiller case with looks very good.
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Thank you Mario :D
Sacha, it is another guy who painted the case, do not how to explain it..
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There are three options that I can think of: Poweder coated; Eletrostaticly spray coated; Good ol spray coat.
Yes it looks very good!
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Nice - too bad not ATI though so you could Fold on it. ;)
Will look fwd to performance specs. Please include watts and noise. :D
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thats a very clean job man, good luck w/ that PC :D
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very nice.. :) looking forward for your chiller.. :)
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Really nice. I am looking forward to hearing about it coming together.
May I ask the dimensions?
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Dimensions about 50 x 20 x 20 ( in centimeters )
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55*22*22, it would have been too short with 50*20*20.
About performance, the system wasn't designed first to go under 0°, Noobzed's choice, that's why I've decided to use this little compressor (L88TY - 1/4hp) as its able to carry >600w @5° with R134a. But seen the time we spend on this project we have decided to go under 0°, but don't forget that there are ~500w to carry, we'll change the gaz (mix butan/propan for now) for R404a but don't imagine it will go very low :( . We should have decided tha t at the begining, I'd have used a nl11f :/
Noobzed wanted a good-looking unit before anything else, I hope he'll love it :D
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http://clemmaster.free.fr/Chill/Noobzed/boite3.jpg
http://clemmaster.free.fr/Chill/Noob...chauffeur3.jpg
http://clemmaster.free.fr/Chill/Noobzed/system15.jpg
on this pic the condenser appears grey but it's black, I think that's because of the pipes that are too shiny :p
I'll update this page with new pics. Today I do some electricity and the unit will be sent tomorrow or on Thursday.
I haven't made pics of the inside of the tank, I've put sort of translucent silicone and the tank is totaly tight now :)
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Can some Xs expert in phase changing give their advices for the TDP of two 8800 GTX in SLi ( GPU@700 ) and nForce680i NB plus the SB ?
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Quote:
Originally Posted by
noobzed
Can some Xs expert in phase changing give their advices for the TDP of two 8800 GTX in SLi ( GPU@700 ) and nForce680i NB plus the SB ?
Nvidia suggest a power consumption of 140-170W depending on the manufacturer (for the whole card, whit 640MB of memory, DC supply regulator..etc.), and the cooling device since it can also drain some power.
GPU for it self can consume 60-70% of that. So it is 0.7*170W=120 on default. For 20% increase of VGPU, and 20% of OC it's (1.2^2)*1.2=1.728 x more. That's max of 205-210W for the worst (170Wdef. - probably factory OC card) scenario.
205+205=410W for the 2 OC-ed GTX GPUs
NB+SB?? Max 60-80W together. 80W+ 410W=490 ~ 500W ;)
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that is I wanted to know, so 120W @ stocks, 240 + 80 with NB + SB so equal to aprox 320W @stock. I'll not do Vmods, just OC with clocks.. so I can say with your numbers it 'll be around 400W for SLi and chispets, isn't it ?
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It looks really awesome!
But aren't you not supposed to use blocks with plastic tops and go subzero?
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Quote:
Originally Posted by
noobzed
that is I wanted to know, so 120W @ stocks, 240 + 80 with NB + SB so equal to aprox 320W @stock. I'll not do Vmods, just OC with clocks.. so I can say with your numbers it 'll be around 400W for SLi and chispets, isn't it ?
Yes it is.
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Quote:
Originally Posted by
serialk11r
It looks really awesome!
But aren't you not supposed to use blocks with plastic tops and go subzero?
Do not think it 'll be very far from below zero, I hope a tiny 10°c in LOAD, so plastic covers does not matter, I think so ..
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Quote:
Originally Posted by
noobzed
Do not think it 'll be very far from below zero, I hope a tiny 10°c in LOAD, so plastic covers does not matter, I think so ..
Oh okay :)
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Quote:
Originally Posted by
Clemmaster
Noobzed wanted a good-looking unit before anything else, I hope he'll love it :D
Well, you two have seen to that. It looks amazing. :clap:
I will be enviously watching for the results.
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very nice work mate, any more pics of the unit?
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The unit is finished at 95%, need to do some electric and other small things, pics very soon !
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Really nice unit there ;)
regards
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Quote:
Originally Posted by
LittleDevil
Really nice unit there ;)
regards
You are a master in phase change, and have compliment from you is superb.
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Sorry for electricity and screws and bolts, I've made it too late and the shop was almost 90% closed, I wasn't able to buy anything, so the electricity is done with what I had :(
I would never have though it would take me time ... Next time I'll do it more seriously, I'll buy what I need sooner...
What I can remember of that experience is that it's very hard to do nice work when we don't have the right tools and accessories (I've lost so much time that I don't want to work in these conditions anymore :/)
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No problem, I have finished insulation of the tank, screwed the compressor to the case with silentblocks and right bolts, but now my biggest problem is to redo electricity... Can you help me ? ..
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Quote:
Originally Posted by
noobzed
No problem, WE have finished insulation of the tank, screwed the compressor to the case with silentblocks and right bolts, but now my biggest problem is to redo electricity... Can you help me ? ..
edit : We have finished
Noobzed 5% + Damsxx 95% of this work !! :toast:
:D
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It is a joke of course ( oeuf corse ) :D but damsxx is great in doing insulation !
I have redo all electrical parts with the help of Clemmaster, now time to plug and fill ! :D
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what kind of armaflex did you use to insulate?
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Looks like a dang fine unit to me!
Sorry if this is a tad off topic...but I'm planning on doing an A/C conversion this summer, and was wondering about the sound levels from these units. Ie, what frequencies, about how loud, and most importantly, how well is that Akasa working for you?
Thanks a lot!
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athanatos : it is a 3mm thick armaflex with one side scotch, very easy to work with.
startkiller : do not know about noise, akasa is for looking above all, and phonic isolaion after.
PS: I had never heard the unit in work, the construction still in progress, first run, the 11/04 I think, with R404a fill in.
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wow this is one of the best things I've ever seen. 110% professional to the extreme.
Quote:
Originally Posted by
uclajd
Nice - too bad not ATI though so you could Fold on it. ;)
Will look fwd to performance specs. Please include watts and noise. :D
iirc g80 can fold too
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you all ways wan't to avoid having brazes inside the secondary coolant, as should a leak ever form, gues where the secondary coolant shall go!
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http://img385.imageshack.us/img385/6479/systemehf1.jpg
the secondary coolant ? do not understand this sentence..
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I think he might be talking about freon getting into the coolant if the coil in the res (pardon my ignorance, I don't know the exact terminology in chilled water systems) leaks
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lol what do you mean? I mean I think he means the coils have r404a. I think he's saying what if the r404a leaks into the coolant that the pump is circulating through the tubes and blocks.
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Do you mean if you have a leak in the system that the refrigerant will get into the water?
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Great, clean unit and rig ;)
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What is the purpose of copper coils before the condenser?
Also, isn't the condenser too small? To be effective, it will require high rpm/noise fan.
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the 38mm papst fan has a good airflow.
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At first this unit wasn't supposed to go under 0°, with the mix butan/propan I used this little condenser would have been enough as the discharge pressure wouldn't have been over 10bar, but now it will run with R404a so the discharge pressure will be a bit higher but I've pressure-tested the HP part over 30bar so pressure isn't a problem. About the copper coils before condenser (desuperheater) it will help just a bit (because the ambiant temp will be a bit high and so the thermal transfert will exist ...), but its purpose was to make the unit nicer (I found this nice :D)
It would like to congratulate damsxx and noobzed for their work on the unit (electricity and insulating), it looks more "professional" now :)
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Quote:
Originally Posted by
noobzed
looking good.. I have a doubt: what is the second cable near the pump cable?
J
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this is the thermostatic probe, why ? is there a problem here ?
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very good job :slobber:
the case is very good.
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Not bad at all ;)
regards
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very tasty unit
love the insulation
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Quote:
Originally Posted by
noobzed
Oh mygot that looks good!
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You think the pump can withstand corrosion and expansion of the entire housing and such?
Nice insulation, make sure you have a backplate though as that does look a bit skimpy.
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Just it looks like plastic, and either antifreeze can soften the plastic and cause it to break, or it might just not like being completely submersed.
Your insulation looks fine as I saw your looking at 10 degrees (farenheit or celcius?)
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I hope the GPUs will run in charge at +/-10°c. Yes the pump housing is in plastic, I'll have problem with ? :/
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not as long as you above freezing the due point is around 15 degrees so if your around that then there will be no condesation issues either
you have your so well done that it would be fine at -20 or so fine
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I am thinking of do an envelopp aroud the pump, i mean put some a thin layer of Araldit on it or some Silicon, what do you think about this idea ?
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Better to have it out of the res.
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not the purpose of this cooling.
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does the cap tube server as the evap in this setup?
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No. The coil of copper tubing does.
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lol thats what I was going to do with my system with the EL wire! but movers killed it so never got that far, not as bright as it seems just to warn ya, shows up great when dark though!
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very nice work ... respect
