how do you set up two pelts not stacked?

[Squishyface]

Lets assume a basic setup is a cpu, then a cold plate, then a pelt, waterblock, etc.
If a pelt is 40mmx40mm...and you made your coldplate 80x40mm (assuming you had room), could you put two pelts on the cold plate?...would it be more effective at cooling the cold plate and thus the cpu?


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1.2Tbird @1352 air cooled. Soon to be watercooled :P

[Joe]

Yep but you will need a specially made block to fit that. which is a project I am working on

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C-ya
Joe - Owner/Editor
www.ProCooling.com
Where the Completely Addicted Come to Cool Off

Somebody set up us the bomb.

[Rich W]

My block is 6" long.... I've been running 3 pelts for a long time in a situation very similiar situation as you described. Works great

[Kevin]

The new Dangerden socket A block allows for dual peltiers...

[Freakyfrank]

yes it can..
i'm also working on dual TEC setup..

however, the coldplate should be thicker than with one pelt.. or else the heat spreading resistance will become too high.

im currently working on a 1/2" coldplate and later on a custom-made 1/2" waterblock, both of 99,9% pure copper.

<FONT size=2>

topview Wblock

##########################
##########################
##########################
##########################
##########################
##########################
flow:
<-----------||----------->
(the white between the # are the flow-lanes)
_
sideview Wblock+TECs+ColdPlate

  OUT            IN             OUT
  ^^             ||             ^^
 $||$$$$$$$$$$$$$||$$$$$$$$$$$$$||$
 $||$$-----------/\-----------$$||$
 $|\--#-#-#-#-#-#/\#-#-#-#-#-#--/|$
 $\---#-#-#-#-#-#/\#-#-#-#-#-#---/$
 $$$$##########################$$$$
     |===========||===========|
     |__156W_TEC_||_156W_TEC__|
     ##########################
     ##########################
     ##########################
               HOTDIE

$$ = plastic
## = copper

  ^
  | = waterflow
--/

</FONT>

some ASCII lovin here

anybody sees any flaws in this design??

I thought the maze design wouldn't work as well as this design... (not even considering a cross-drilled design)

[This message has been edited by Freakyfrank (edited 02-27-2001).]

[Freakyfrank]

i'm working an a 3d-model..

rhino rulez!

[Cryonosis]

why, that ascii art is something else . . .two pelts would be an interesting setup. If possible I'd reccomend a trapazoidal cold block as it would do a better job of coducting the heat over the area, but that's nothing to big.

if you ever get it setup do post pics and tell us how it works.

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©××××ק===============
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©××××ק===============
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webmaster of the kingdom of Ys http://cryonosis.8m.com

[This message has been edited by Cryonosis (edited 02-28-2001).]

[Katanaman]

Basicly..

1. Buy the right size copper water block (with coldplate).
2. Buy the right physical size peltiers.

Two 40mm x 40mm 172 watt peltiers worked well for me.

This setup will give lots of cooling power in as small an area as possible.

My rig..

http://www.e-magic.co.nz/starlet/

cheers

Keith

[]JR[]

Erm maze 2-2 any1?

As a setup @ 17v (dual 172's) you struggle to outperform it even modern phasechange solutions will have trouble keeping up at the higher end of the heatloads. Esp if you got a bong to keep the water temps down.

]JR[

[pHaestus]

Good lord this thread came back from the dead! That's a great setup Katanaman.

[]JR[]

LOL, i really should read the post date

]JR[

[pHaestus]

well a good topic knows no expiration date.

[Katanaman]

[]JR[]

Or, how about stacked, take a look @ the specs for the bottom module...

Serial number    I   dT  Q
TEC1-1xxxxxxxx5  25  12  68  
TEC1-1xxxxxxxx5  15  68  265  
TEC1-1xxxxxxxx5  18  68  295
TEC1-1xxxxxxxx5  24  66  360

All 25v, 68c dT and 62mm square

]JR[

[Ubernerdsteve]

I have found out through my experimenting that a stacked pelt will give you a colder temperature, while a side by side will give you more of a "normal" single pelt temperature but more consistant (load doesn't make a huge difference with opperating temps). This is why this is:
Let us take a 266 watt pelt. a 266 will run the cold side 20C colder than the hot side if we lived in a perfect word (no inefficiencies) therefore the colder you get the hot side the colder the cold side gets. so if you cooled the hot side with a pelt you make it colder and therefore you make the cold side colder, unfortunatly this is extremly inefficient because pelts are better heaters than coolers. It requires a very good water block and a very good system to COOL down the water as well otherwise this system will start below zero and be up to about 10C in a little bit because your water will be smoking. On the other hand a side by side is limited to 20C below the temperature of your water but it eliminates some of the inefficiencies and gets it damn close to exactly that. here are some numbers
stacked: lowest temp: -7C
highest: 15C
temp during normal cpu usage: 0-3C
side by side: lowest temp 2C
highest temp:19C
temp during normal cpu usage: 12C