Herc130

I wanted to get as much input on this as I can and also start off the bat with saying it will go in a scratch build case I am making that has been sitting in the corner of my workplace for the past few months about halfway done. Trying to get motivated to get back into it and for the most part I am, till I get off a long day of work and don't feel like doing anything.



The mobo sits horizonatally and a heavy heatsink should be no issue, if it is, I am sure I can make a brace. The top of my case is cavernous and I can mount this any number of ways. Reguardless of how much it cost to run XX amount of TECs, this approach will allow me to turn the TEC off and run my whole PC as just a simple watercool set-up for probably 80% of what I'd need. Also, the rads (3xMCR320) that I will use to cool the hotside of the TECs are all at the bottem and I will cut a single large exhaust hole and connect an exhaust tubing to route the hotair out the window.







I think of it kinda like an LN2 pot, but instead of being a pot and holding dry ice, it is flat and will have plenty of space to mount TECs. The narrow end of the plate will be the CPU waterblock's base. This will not be something a CPU waterblock sits ontop of, it will actually be the waterblock for the CPU. In the crappy sketchup I did, it is holding 9 50mmx50mm TECs, however, what I will actually do is make the TEC section large enough to hold 4 62mmx62mm TECs and will start out with only using 2 TECs and then possibly move up to 8 (can put 4 TECs on each side). The TEC hotside will be cooled by a custom made waterblock hooked up to 3 MCR320 rads or maybe 6 rads if need be (stacked with a very loud 150CFM fan in the middle of the stack). It will go on my classified mobo with an i7 975 cpu and 6gigs of dominator GT DDR3 2000s.



All of the board will be watercooled, just the CPU will also have its base be a direct part of the large TEC cold plate.

What I want to know is:

Does having multiple TEC's cooling the same coldplate, make that cold plate far colder then 1 TEC is capable of doing or is there a pretty bad curve for deminishing returns here?

Multiple TEC's should keep that single coldplate cold easier right (like it will stay ahead of the CPU's heat output)? It should increase ithe cooling capacity and allow me to overclock far higher then just using a single direct contact 62mm TEC..yes? Whatever limit a single 62mm TEC had on how much heat my 975 can put out before the TEC no longer stays up with cooling should be much higher now with multiple TECs?


Which 62mm TEC to get, the $29 ones on ebay that are supposedly 527watts or these http://www.customthermoelectric.com/tecs_imax.html (can't seem to direct link, but Part #: 19911-5M31-28CZ and rated as 400w Qmax and is $56 each)

And what meanwell psu to power 4 to 8 of these as economically as possible? And yes, I know multiple TEC's are not really economical, but I'd only use the full capability for benching, a scaled down version with 1 or 2 TECs running for a good overclock to play FSX and TEC's completely off for regular use.

nubz

Looks amazing, only if you were speaking English it would be even more awesome!

__________________

OCN Anti-Troll Patrol

Herc130

I am sorry, my mind is a jumble and I reread it to see if I could explain it better, but I can't. Would probably just make it even more confusing lol.

thehighlander123

i think combining this with a bunch of heatpipes would work better

OR

a MASSIVE tec water chiller

__________________
There can be only one! help me find a case (less than 150 shipped) http://www.overclock.net/wanted/5291...ml#post6532218
Dual Loop:
custom pvc res=>DDC3.2w/xspc acrylic top=>DDC 3.2 w/xspc acrylic top=>Black Ice Extreme GTX 360(3xUK 3000's pulling)=>mcr 120=>Apogee GT (bowed)=>res

DDC Ultra w/xspc res-top=>RX360(3x pana Ultras pulling)=>enzotech nb block=>Dtek GFX 2=>res-top

Herc130

This is like heatpipes and in fact I will probably connect copper pipping to the TEC coldplate and spider it out to contact the EK mossfet/NB/SB waterblock, each ram stick and maybe the vid cards. But I think the solid slap going to the CPU using the shortest distance will be best for CPU cooling.

I have seen massive TEC water chiller projects and have thought of doing one myself and my scratch case was actually made with the intent to house a TEC waterchiller, but all the results I ever saw makes me think the returns for the effort is extremely poor, that it is not worth the effort. Direct contact is diffinetly better then chilling water, but I didn't like direct contact because that would lock you into always having the TEC on when the computer is on. Then I thought of this, which allows me to do direct contact and still be able to run the computer without the TECs on.

Ultrasonic2 (muffy)

you'd have huge conduction losses using such thin copper and having the TEC's so far away from the heat load . you'd be better off with a chiller

__________________

Lozza

If the narrow part of that metal plate is a waterblock, it seems pointless to me having a waterblock there because the plate would be colder than the water. You only need water blocks on the hot side of the TEC's.

__________________
Razer Deathadder not working?

zipdogso

His intention is to arrange things so he can turn of the TEC's and still cool his CPU so without a water block there it wont work.....Not that I think this arrangement will work very well anyway.

ChielScape

yeah, idea is sound, apart from one detail... the flat plate. since you're trying to move heat over a reasonable distance, youd be better off with a solid pillar, if not a heat-column optimised for low temps.

EDIT: heres an illustrative render i made of it a while back.
im sure some people here will recall it.

__________________

angrysasquatch

I don't think your idea would work very well at all.. too thin and too long for good heat conduction. Heatpipes would work good for something like this, if it were running at 50-100*c. Heatpipes don't work worth a damn at cold temperatures though.

Chiel's idea should work decently, but if you're making it out of copper, that's definitely over $200 of the stuff. And it would be incredibly heavy, your CPU will have to support that weight regardless of the mounting solution, it will probably be enough to crack the solder balls in the CPU- kinda like the 360's RROD problems, look here:
http://forums.maxconsole.net/showthread.php?t=98040

I calculated 6-7 kg, assuming 6cm x 6cm x 20cm dimensions, then plus the weight of the TECs themselves, and the waterblocks, and the water inside them. I think at this point, TECs start to lost to cascade units, on both price and performance.

__________________