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Custom 62mm TEC Water block - Page 64  

post #631 of 680
Quote:
Originally Posted by spereira88 View Post
my question is whether the Cold ambient would allow the TEC Block to perform better.
from what i have picked up... the colder you can keep the HOT Side, the Colder the COLD Side will be?
YES

That is what I meant when I said "The sheer volume of copper in Ultra's block will make it pretty efficient at low ambients."
I did not make myself clear enough.
If you can provide sufficiently chilled coolant to back up the cold the block can hold you are on to a winner. With a sufficiently cold HOTSIDE you don't have such a high Dt requirement to get a really chilly coldside. This allows the use of smaller TECs or bigger ones with a good undervolt - the advantage of the undervolt being greatly increased efficiency once you go a little below 45% power. Of course if you want to maximise the coldside temp you could use a large TEC at more than 50% power thus trading your efficiency for greater Dt - so long as your working Q exceeds the heatload of the CPU by a fair bit.
Edited by zipdogso - 11/28/09 at 6:46pm
post #632 of 680
Thread Starter 
Quote:
Originally Posted by spereira88 View Post
my question is whether the Cold ambient would allow the TEC Block to perform better.
from what i have picked up... the colder you can keep the HOT Side, the Colder the COLD Side will be?
your answer is YES

i have my radiators out side my house. it was the best thing i ever did .. cos it's ALWAYS colder out side and noise isn't a problem anymore so i can run fans at 100% all them time
post #633 of 680
Cool! (litterally
i was wanting to do some Super Benching with my QX6850 during the winter and have just plain rads in the summer... if the temp goes down to about -20c here where i live and i can maintain the coolant IN The loop at Aprox -25 how much lower would you recon i could have the TEC Cold side temp at? with lets say a 400+ watt TEC? and my CPU OCed to High Hell! Over 5ghz at least! ALSO having the PC outside, i could also get the Vid cards and NB/SB/Vreg Sub Zero! that will Surely be an OC boost... and in the winter at those temps i dont really have to worry bout condensation...

In that aspect i was thinking about using the Kneadable Eraser Insulation technique. Board is 780i FTW by EVGA Ram is 2 Dimms of Corsair Domm DDR2-1066. cards are EVGA 8800Ultra Black pearl edition... would be able to have them on the same loop too! so basicaly ide need to WARM the Trip Raptor drives to make sure there is no damage to them... does that sound about right? Oh... will fans run at -20c?

Sry! im trying to ask as much as i can in one post! Sry!
post #634 of 680
The highest TEC found in the commercial world is a 400w TEC, with such a TEC you will need TONS of cooling.
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theonering
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CPUMotherboardGraphicsRAM
Q6600 B3 Asus Striker II Formula 8800GTS 512 SLI Corsair Dominator PC2-8500 
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2x Seagate 500GB, 2x Seagate 1TB LG HD-DVD Bluray Windows 7 x64 Samsung Syncmaster 305T+ 
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Razer Reclusa Coolermaster Realpower 850w Lian-Li PC-V2000B Razer DeathAdder 
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post #635 of 680
Quote:
Originally Posted by flak-spammer View Post
The highest TEC found in the commercial world is a 400w TEC, with such a TEC you will need TONS of cooling.
Your forgetting he is taking his whole PC outside and planning one of Ultra's massive 62mm waterblocks with chilled coolant I'd say with a couple of decent rads he wont have a big problem with a 400w TEC so long as sticks everything else on a different loop.

Quote:
Originally Posted by spereira88 View Post
will fans run at -20c?
So long as you don't use oil filled ones you should be OK - If it were me I would try and get fans with ceramic bearings - you might have to look outside the computer world for them though.

Spereira88 before you start thinking along the lines of temps equivelent to single stage phase remember your lowest temp (probably obtainable at CPU idle if at all !) will be -50ºC. TEC's generally don't operate below this.
It might turn out to be pointless going for high Dt.

.
Edited by zipdogso - 11/29/09 at 8:31am
post #636 of 680
Thread Starter 
Quote:
Originally Posted by spereira88 View Post
Cool! (litterally
i was wanting to do some Super Benching with my QX6850 during the winter and have just plain rads in the summer... if the temp goes down to about -20c here where i live and i can maintain the coolant IN The loop at Aprox -25 how much lower would you recon i could have the TEC Cold side temp at? with lets say a 400+ watt TEC? and my CPU OCed to High Hell! Over 5ghz at least! ALSO having the PC outside, i could also get the Vid cards and NB/SB/Vreg Sub Zero! that will Surely be an OC boost... and in the winter at those temps i dont really have to worry bout condensation...

In that aspect i was thinking about using the Kneadable Eraser Insulation technique. Board is 780i FTW by EVGA Ram is 2 Dimms of Corsair Domm DDR2-1066. cards are EVGA 8800Ultra Black pearl edition... would be able to have them on the same loop too! so basicaly ide need to WARM the Trip Raptor drives to make sure there is no damage to them... does that sound about right? Oh... will fans run at -20c?

Sry! im trying to ask as much as i can in one post! Sry!
Sounds like fun to me .. maybe you should give it a go !
post #637 of 680
Quote:
Originally Posted by zipdogso View Post
Spereira88 before you start thinking along the lines of temps equivelent to single stage phase remember your lowest temp (probably obtainable at CPU idle if at all !) will be -50ºC. TEC's generally don't operate below this.
It might turn out to be pointless going for high Dt.
.
So your saying that even with an ambient temp of -20c BEFORE windchill and with the RADIATOR placed in a Tub Full of Snow... i cant get below -50c with the TEC?

EDIT: by the way this is all hypothetical... and i would still need to buy Ultra's Uber Great TEC waterblock, a TEC, and make a PSU...
post #638 of 680
Thread Starter 
Quote:
Originally Posted by spereira88 View Post
So your saying that even with an ambient temp of -20c BEFORE windchill and with the RADIATOR placed in a Tub Full of Snow... i cant get below -50c with the TEC?
Man if you can get to -50 at full load you deserve a medal
post #639 of 680
Really? on a TEC? Cool! if i can get a Job and have enough cash in the winter... ill give it a Shot! And i was thinking... when you get your Coolant Chiller Built... and ready for a Test sale... ide like to try my other idea of having an Oil cooled PC Using your coolant chiller to Chill the oil! And Cooling the Loop from the Hot side Again with the 'Outdoor Sub -20c ambient rad in a Snow filled Bucket' idea... only worry there is... the viscosity of the mineral oil once temps go below 0... cause imagine... your Entire board, cooled to Sub zero... Make for GREAT OC stability? And 0 Possibility for condensation in the Mineral Oil

Actualy... if i had the Fish tank with the Components And mineral oil outside alone... would get subzero temps on the board... Imagine Chilling the Coolant further oh my Frosty imagination gets away from me! need cash first

And Im OFF to the Employment Center

EDIT: Any of you live somewhere that your ambient temps drop below zero in the winter?

2nd EDIT: there are many ways to get your CPU to SUB-50c with a TEC... just gotta find the BEST Way to do it or crazyest i perfer that way Hmm....
post #640 of 680
okay... final LEAP of my imagination... your TEC Cooled Block... Plus the Sub-20c Ambient... Plus the Snow or Dry ice filled Bucket cooling the two rads... PLUS your Chiller Chilling the Coolant Further at FULL POWER, in turn being cooled by a GIANT Copper rad that im going to build..... that may just break the -100c mark... but as i would expect.. with my lack of knowledge of TECs and there limits, they may stop being effective after a Certain temp? as zip was saying? would be Awesome to try though! to at least match Phase change... or even Dry ice....
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