Copper or Aluminum?

[tbirdkiri]

Which conducts heat better?

[dimmreaper]

copper

[tbirdkiri]

I just one a milenium glaciator in a bet!!!!!!!!

[Mr. $T$]

copper if you are rich sliver

[Mr.Lansing]

Of course COPPER!

[Luie]

copper ofcourse
silver is the best heat conductor and next comes copper.
but silver is very very expensive

[acidgr]

copper is better, but you will not see any big difference. You will see 0,5-1,5*C, not more

[!!tio!!]

Copper + Silver thermal Grease

[jbslow]

Copper


Does anyone have a link for a silver heat sink?

[Silversinksam]

Thermal Properties of Materials

Thermal Conductivity, W/cm-K

Aluminum 2.165

Copper 3.937

Gold 2.913

Silver 4.173

From time to time I add silver baseplates for HSF's

Heres a good article:

http://www.7volts.com/silversink.htm


The only mass produced Silver hybrid HSF is the Silverado
http://www.chillblast.com/reviews/silverado.htm

--Heatsinks that are silverplated are pretty much an asthetic eyecandy and doesnt achieve better thermal properties.

-A friend recently got the Asus Black pearl mobo and it took me 20 minutes to convince him that his pretty gold plated chipset cooler was useless lol......Finally got him to replace it and use a better chipset hsf

:phttp://www.digit-life.com/articles/asuscusl2cbblackpearl/radiator.jpg

[dimmreaper]

Originally posted by luie
copper ofcourse
silver is the best heat conductor and next comes copper.
but silver is very very expensive Actually CVD diamond is the best heat conductor, followed by Cusil (copper base silver alloy).

[Mad_Capr]

I wonder if anyone has ever made a pure silver heatsink.

I guess if you were going to spend that much money, you might as well watercool, eh?

[Silversinksam]

Originally posted by Mad_Capr
I wonder if anyone has ever made a pure silver heatsink.

I guess if you were going to spend that much money, you might as well watercool, eh?

Silver is an excellent thermal conduit, but to have a 100% silver hsf would be foolish for 2 reasons:

1: the cost

2: anodized aluminum thermal disipation is faster than silver so a silver/ Anodized aluminum combo would be best......silver base aluminum fins would be best.

[Mad_Capr]

Originally posted by Silversinksam


Silver is an excellent thermal conduit, but to have a 100% silver hsf would be foolish for 2 reasons:

1: the cost

2: anodized aluminum thermal disipation is faster than silver so a silver/ Anodized aluminum combo would be best......silver base aluminum fins would be best.

Thermal conductivity is the main quality you want in a heatsink.

The ability to dissipate heat faster only helps once the heat source is turned off.

[Silversinksam]

Originally posted by Mad_Capr


Thermal conductivity is the main quality you want in a heatsink.

The ability to dissipate heat faster only helps once the heat source is turned off.

What you wrote doesnt make sense, how can you turn off the heat? Its a combination of thermal retension and thermal disipation...

Why do you think Alpha hsf's cold forges the copper insert into its anodized aluminum base......Thermal conductivity and thermal disipation.

[Mad_Capr]

Actually, what I wrote makes perfect sense.

The heat source in this scenario is the cpu. So, to turn off the heat you have to turn off your computer. If you have the time, read this article:

http://www.amdmb.com/article-display.php?ArticleID=105

If you don't have time, then just read the following parts that I've quoted:

"A small volume of aluminum will cool more quickly than an equal volume of copper once the heat source is gone. This is due to the same reason as fact #1, namely there is less energy stored per unit volume is aluminum than copper. This is, however, a transient condition. Heat transfer from a computer is a steady-state condition where the temperature of the heat sink remains relatively constant. The specific heat of a material partially determines how a material responds to transient conditions but has no effect at all on steady-state operation. "

IN OTHER WORDS:

"The heat source driving energy into the heat sink remains in effect until you turn off your computer. If you have aluminum pins or fins, congratulations, they will cool off more quickly than copper ones after you shutdown your PC. "

[tbirdkiri]

lookie lookie

http://www.engineersedge.com/properties_of_metals.htm

[Luie]

to the person who said sth about diamonds:

how could diamond be a good conductor?
how could it be better than silver?

[!!tio!!]

Actually Diamond is coal. Coal is carbon. Carbon is metal. Coal is also dead animals and plants.

In another words, everything conducts!

But
Never heard of Diamond being the best conductor

Attach an image with diamond on AMD CPU pls then!

[Mad_Capr]

luie didn't question whether it conducted at all. He just questioned whether diamond was a "good conductor"..

Personally, I'd like to see some proof myself.

[!-=sky=-!]

who will have the money for a diamond heatsink?
hahahah

even if u do i think you will spend it on cpu parts...rather then just a heatsink

and if i rememebr correctly copper absorbs the heat faster than alluminium but alluminium disperse the heat faster.....either it works this way or the otehr way around

[!!tio!!]

Actually Digging for diamond is a nice way to get a heatsink:rolleyes:

No one recommend a diamond heatsink!

Unless for he
The 1 person that maybe rich
He.......................... Build Gates (Bill gates)

Umm.....
Why did he wanna get a diamond heatsink anyway?
I rather get thousands of CPU than that!!!!

[Overclockers]

so, pure silver is better or a mixture between silver and alumunium....?

[Random Nonsense]

all this about having a copper insert or a silver insert aint too good, u get votage across them, and therefroe i expect corrosion (dissimilar metals)

it may very well be that the corrosion will take so long that the owner of this heatsink with a copper insert aluminium fin structure will be dead before it becomes a problem......

i dunno, i wana a diamon heatsink

[Mad_Capr]

Originally posted by Overclockers
so, pure silver is better or a mixture between silver and alumunium....?

Pure silver would perform better I think, but way too expensive for a solid heatsink.

The facts are:
Silver conducts heat better than Copper
Copper conducts heat better than Aluminum

Therefore, if you are talking about single metal heatsinks, copper is the way to go since silver is too expensive.

Some have claimed:
Better results can be achieved with a type of alloy made from a combination of 2 or more of the above metals, but I've never seen any proof of this.

[Luie]

yep he is correct:

The facts are
Silver conducts heat better than Copper
Copper conducts heat better than Aluminum

and btw, i know alloy metal is harder and have a higher melting point. I wonder if it is somehow related to heat conduction...