Madshrimps Forum Madness

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Madshrimps Forum Madness (https://www.madshrimps.be/vbulletin/)

- Hardware Overclocking and Case Modding (https://www.madshrimps.be/vbulletin/f10/)

- - what heatsink (https://www.madshrimps.be/vbulletin/f10/what-heatsink-4018/)

TeuS	27th February 2004 14:34

Quote:

Originally posted by jmke

ineens 7°C warmer als voor den edit? :p

had HDD power off aangeleged (HDD is luid), waardoor prime stopte (??) en de CPU weer ging idlen (wat ik niet op tijd merkte)

TeuS	27th February 2004 17:11

5v fan: CPU 72°, case 30°

TeuS	27th February 2004 18:52

the results... I hope they make sense, some things don't seem really logical :shrug:

I'll check everything tomorrow, re-check temps if needed.

results are not 100% perfect (ambient temp, cool paste burn-in) but that was not the goal

TeuS	27th February 2004 18:52

more graphs

jmke	27th February 2004 19:39

V7+ sucks, is what I'm thinking :)

TeuS	27th February 2004 22:59

Quote:

Originally posted by jmke
V7+ sucks, is what I'm thinking :)

yep, me too. if you've got a better copper (60mm) heatsink, feel free to ship it with the TEC. perhaps we'll get different results

I conclude from this test there's no real difference between the Alu/Cu and full Cu heatsinks when it comes down to CFM, the temperature rises equally as the CFM drops

TeuS	7th March 2004 11:02

Quote:

Copper heatsinks are no good for passive cooling, that's what most people don't know. It's because copper can conduct the heat faster than for example aluminium, but it also keeps the heat longer inside than the just named aluminium. That's the problem with copper and passive cooling. Copper needs to be ventilated to have a better cooling effect than aluminium. Aluminium is far superior to copper when it comes to passive cooling, as the Alu can pass on the heat to the surrounding air much quicker than copper can. The absolute best solution for passive cooling would be a heatsink with copper base and large aluminium body (fins).

http://www.xtremesystems.org/forums/...threadid=30929

FreeStyler

7th March 2004 11:29

so people don't really know what they are talking about, since everyone is saying something different.

That's where the high school (or better, university) physics teachers come into play (they do have a use afterall)

TeuS	7th March 2004 11:33

Quote:

Originally posted by Liquid3D
Celemine1Gig to the forum. I truly appreciate someone with a working knowledge of metalurgical/thermodynamics. The assessment was on the money in his/her replies. For a passive radiator copper isn't as effective as aluminum, and this where many of the "myth's" of aluminum's conductivity compared to copper become pertinent. For the longest time I simply thought mobo makers whom used passive NB/heatsinks, did so primarily for cost, and in many cases I'm sure they do.

I'll try to get some books about thermodynamics thought :)

Da_BoKa

7th March 2004 18:21

Quote:

Originally posted by Da_BoKa
copper takes absorbes the heat much better but alu can give away the heat better
so take te alu one, and same reason like HardFreak

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