stacked peltiers on a p3?

[mkosem]

hello, I am looking into getting a p3-1gig. I have plans to stack 2 peltiers on it. the first, an 80w 40mm pelt, the second, a 172 watt 40mm pelt. what kind of temps should I get with this system? and what kinds of oc'age should that give me?

--MAtt

[mkosem]

perhaps a multistage pelt would be better?

--MAtt

[Butcher]

theoretically your first stage will get 43 and second stage 25 if you have the p3 at stock voltage, realistically, you might see 50 or 60 C difference. In fact it probably won't be much better than just the 172W, pelt stacking is way overrated mostly.

[hielko]

I've done some calculations with kyrotherm.exe and I think the temp. you get wit hjust one 172W pelt is almost equal to the stacked setup.

One 80W Tec will produce approx 90W of heat @ 12V. the CPU will produce another 40W or something like that. that's a total of 130W load on the coldside of the 172W tec. This will produce a DeltaT of approx 20 degrees C. The 80W tec with a 40W heatload will produce a DeltaT of approx 30 degrees. Togehter this is a deltaT of 50 C.

A 172W Tec with just a heatload of 40W the DeltaT will also be 50 C. So just one 172W pelt will probably produce better results since the water temp will stay lower.

I think one 80W Tec with two 120W tecs on top will work for a pentium 3. That would produce a temp around the -30 Degrees C . (if the radiator can keep the watertemp low enough.)

[sabaston]

Expect good results wit stacked pelts. I currently have a 1.8ghz @ 2.3ghz,... its pretty happy on the stacked pelts,... giving it stable about -20 c... dunno what you'll get wit a p3 coppermine,... but i've seen an air cooled tulatin 1.
2ghz @ 1.65ghz,... and thats wit a 183 fsb,....

if you wanna see tulatins,...

Tualatin 1.2ghz

P.S. if you wanna read the article,... you might wanna bust out the good ole' babblefish out on altavista