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View Full Version : Watts to celsius

pi3573
11-04-01, 01:29 PM
what would the celsius value be for 85 watts (amd 800 Duron)
Or .... how much heat does a Duron 800 push?(1.85 V)
flounder43
11-04-01, 01:40 PM
You cannot convert watts to a temperature. That is just not possible. I think what you are getting at is how much heat does a Duron produce at 1.85v. That also depends on what you are doing with the processor.

Heat is a byproduct of pumping electricity through the cpu. The more juice, the more heat...

What do you need to know this for?
pi3573
11-04-01, 01:46 PM
Ihave my Waterblock/pelt operateing at -28.6 C off die and im wondering how much the 47.7 watts (or even at idle ) this amd duron 800 will produce ,so i can estimate what the on effect will be.
thank for any input AND Im intrested in folding with everyone.
flounder43
11-04-01, 01:51 PM
Ok, I see.

First, come on and fold with us.

Second, I think that it will depend on how your water is flowing. Your setup sounds nice.

My guess is that you will keep that Duron nice and chilly, as long as you keep the condensation at bay.

Welcome to the forum! I am sure many people will like to hear about your pelt/watercool experience. I am all air right now, but you never know.

Let me know if you need any help with folding...
pi3573
11-04-01, 02:07 PM
My pump is a becket 570 GH running out of a ten Gallon or so ice chest with 5/8 I.D. everything I drilled my own waterblock at 3/4 I.D the block is 2x2x1 and my pelt is a 40x40x4.7 Vmax 15.40(running at 11.04dcV)Imax 3.9.
I think my cold plate is the most inovative one again started with a 2x2x1 solid copper block then drilled it into swiss cheese leaving two sides solid and lapable put the whole thing together and we have -28.6c
I should say I have lot of ice build up so the case is on its side and i went whole hog on the condensation protection.
Thank somuch for your help.
flounder43
11-04-01, 02:10 PM
Nice setup. What do you have by way of a radiator...?
pi3573
11-04-01, 02:18 PM
Um.... well I dont have a radiatorb its all bong I guess.
I made a 12' cooling tower which the design I found here thanks to Steve for his great work, but I dont have that set up at the moment ,when the temps start to drop( I live in the mountains) Ill set that part of the system up again.
flounder43
11-04-01, 02:24 PM
Ok, so do you have it outside?
Thelemac
11-04-01, 02:28 PM
Is that a ~45Watt pelt that you have?

*Moved to "Cooling"*
pi3573
11-04-01, 02:34 PM
Ok you got me it is out my window along side a 5000btu a/c unit I have ducted with 6" dryer hose. this unit is not running during any of my tests but when I fire it up I can get 37F of cold air blasting over my cpu this unit by itself can overclock a 1.4 T-bird to 16.80 at 13c says MBM
pi3573
11-04-01, 03:17 PM
I gave all the specs i had available ....it did not say what the watts were ...ill poke around see what i can find . I know its the biggest TEC ive ever bought.
Thelemac
11-04-01, 05:33 PM
That would be a good idea, cause if it is, there's no way it would do you any good. Too small.
pi3573
11-04-01, 06:22 PM
I have that data you asked for . I found the maker of the tec , the product specs. say the 40x40x4.7 is rated at 29.3 Qmax and I belive that my needs will be in the range of 47.7 Qmax.

Now I did find a tec that is 55x55x5.8 and it is capable of a Qmax of 81.5 .....Think that will do it?
Thelemac
11-04-01, 06:59 PM
It *might*, though I'd be a bit cautious. If you're planning ot oc, then I would recommend at the very least a 120W tec.
pi3573
11-04-01, 07:14 PM
Aright, now im getting confused ......from what im putting together from this is that NO small pelt can meet the must have of amd overclocking....sooo we now need the big pelts 152 172 id like you take a look at this set of specs and tell me what you think .
I have TEC1-12703 40x40x4.7 Qmax29.3
http://leadingtechnologysales.com/specific.htm

Thanks for helping me unravel the Qmax mystries
Morphoius
11-04-01, 10:26 PM
If you have a 75Watt pelter and a CPU putting out 75 watts at full load, then your CPU temperature will not be affected (theoreticaly, of cource). when you are idleing with this system, however, you will get colder temperatures.

You will probably want about twice as much pelter power as your CPU will put out in watts, and even then i doubt that you will get below 0 degrees celcius.

most pelters have a max temperature differance of 69C, so if i am doing the math right, and you have a 150Watt pelter on a 75Watt CPU then your CPU temps will be 34.5 degrees below your ambient temerature.

Beware, if your CPU puts out more heat than your pelter can move then your CPU will die.