where to get a high wattage peltier?

[mark]

Hello all, I have a slot 1 p3 700e (retail/cbo) OCed to 1085mhz at 1.75v with an 86w peliter and alpha p3125s running at -9°c idle and less than 10°c under EXTREME* full load for 48 hours. I have potted the peltier and siliconed perfectly, but I am wondering if I can put a higher wattage peltier on. Maybe a 117w baby or something. My questions are; Will that alpha be able to remove all that heat? I have a 2nd 300w power supply didicated only to the peltier, will it run a 117w peltier? Also where can I pick up a higher wattage peltier?
(*Seti@Home, Prime 95, Sandra, 3d Mark 2000, and playing mp3's at same time)
Well thanks for any info.
check my baby out; http://www.mjstebbins.com/case.htm

 

[bdf24]

I doubt the Alpha will be able to remove that sort of heat. I know a few people around here told me that the highest you can go is around 85w's with air cooling. So you are at your max I believe.

Maybe now its time to start experimenting with water cooling. Then you can throw as big a tec as you want on that baby!

One other thing, Are you sure those temps are right? They seem a little extreme for having aircooling, Even with a 86w tec! And if they are correct that is awesome! Also what are your system temps with that much heat being pumped into the case?

 

[dimmreaper]

Since you have the huge mofo Alpha P3125, I think it might handle a 118W peltier.

 

[LimeyGreg]

Check this link for interesting peltier info

http://www.procooling.com/html/pelt-tech.shtml

And this one for peltiers

http://www.tedist.com/

 

[William]

if you go to water cooling and want a serious peltier, goto www.3dcool.com, they have something like a 150W peltier. Why you would need it is beyond me, but it is by far the biggest I have seen.

 

[dimmreaper]

dunno260 (Mar 04, 2001 08:30 p.m.):
if you go to water cooling and want a serious peltier, goto www.3dcool.com, they have something like a 150W peltier. Why you would need it is beyond me, but it is by far the biggest I have seen.

I know were to get 180W peltiers, but they are 24V so they arn't to usefull for most people, as you have to do some pretty special things with PSUs ect. to use them.

 

[Metaxas]

Or just obtain a 24Volt P/S, and run it off that. I wonder if someone is going to try to make a better performing peltier, you know, more efficent, moves more heat with a little less power, that kinda crap...

 

[mark]

yeah my temps are correct, cool huh? and my case temp is 15c to like 20c. I have some nice fans moving all the air, check them out http://www.mjstebbins.com/case.htm

 

[bdf24]

Thats pretty sweet man. I wish I had room for a full tower case. I have a 50w peltier on my 800E and my system temp is at 29c and my cpu temp is at 23c at an idle. I am thinking of getting a 72w or 85w peltier. We have the same HSF combo.

I noticed you still have the backplate on your cpu. How did you seal off the back side of the chip from condensation with the back plate on. Or is it off now?

 

[Hoot]

Millisec.com has the 156W 50mm ones for $32.00 and very reasonable shipping.

If you don't need that much wattage, you can dial down the voltage. If you get a smaller one and need more wattage, then you're S.O.L.

Hoot

 

[Ammethyl]

High wattage peltier vs freon...

Here's my reasonning:

since, when using a peltier over +-85 watts, you need more than air cooling (water cooling), it might be more efficient to circulate, in the water cooling system, some anti-freeze/water mix (which I think has a higher specific heat [1] (moves heat better)[/1] ) cooled below zero by a normal freon-compressor-expander-radiator), this way you:

-are sure to get the heat out of the case
- get way below 0c

-don't need additionnal power supply (its working with 120v)

-It is more energy-efficient (I'm almost sure that a refrigerator uses much less power to move the same amount of heat).

-You reduce the nomber of interfaces (water-block/CPU instead of Heatsink/peltier/coldplate/CPU

 

[wild_andy_c]

It is such a good thing to use a freonate state cooler - but it wrieks havoc on condensation, ice and so on.

Aspen Temper 40 is a good regulation phase change coolant that guarantees performance between -30°C and -50°C. You go that cold - prepare for electric shocks and cutting off the whole blocks power supply.

 

[dimmreaper]

Metaxas (Mar 05, 2001 01:06 a.m.):
Or just obtain a 24Volt P/S, and run it off that. I wonder if someone is going to try to make a better performing peltier, you know, more efficent, moves more heat with a little less power, that kinda crap...

Metaxas- If you run in to any 24V 12A PSUs let me know. But seeing as how thats a 288W bench top PSU I doubt you will find one. But let me know.

 

[Hoot]

Astron makes 22-32V Adjustable power supplies. Models range up as high as 20A continuous.

Hoot

 

[dimmreaper]

Hoot (Mar 05, 2001 02:05 p.m.):
Astron makes 22-32V Adjustable power supplies. Models range up as high as 20A continuous.

Hoot

Got a URL were I can get more info?

 

[proze]

and for what price??! you're gonna PAY for a psu with those specs!

 

[mark]

OH MY!!!!
I need a shoulder to cry on.
my 300w power supply that I had the peltier and a case fan (to tell if it was on) blew up on me. Damn thing blew it's fuze. My slot 1 700e that did 1085mhz is TOAST!! I am so mad, it has been running fine for probably 2 weeks now. I went to turn the computer on earlier and i saw in the back a nice blue spark. I quickly pulled all plugs. right now I am back to my 667. Luckily nothing else was toasted. I had the 2nd power supply connected to turn on when i hit the power button. I need to ask you guys a few questions..
the way that I connected the 2nd power supply was to connect green to green and black to black (yes only 1 line). Is that correct? The psu (an L&C brand) was rated at 10A on the +12v line, that should have been ok right? Also where is a good place to get a HIGH QUALITY 300+ power supply?
Now let us all have a moment of silence for another great chip.
May it rest in the big ol computer in the sky.
*sob*
thanks,
Mark S.

 

[dimmreaper]

proze (Mar 05, 2001 03:37 p.m.):
and for what price??! you're gonna PAY for a psu with those specs!

It depends on how much it will cost. If It cost much more than a dual-bobbin centertap transformer, then I'll just build a PSU.

Anyway, I'm not going to be doing this until I build a new machine (probably this summer [your winter paul]).

 

[Hoot]

After chasing through 20 pages at Google, i still could not find a distributor listing a price for them. Here's the Astron site link:

http://astroncorp.com/w28.shtml

It would probably be cheaper to go to the local surplus warehouse and "roll your own".

Hoot

 

[Colin]

www.texastowers.com usually has great prices on Astron.