Full copper heatsinks modification

Is there someone who can make hetasinks(cpu+gpu)from full copper at any cost??

 

I would also be interested in something like that. I was looking online the other day at heatsink manufacturers, of course you have to run a full production line with a mass order.

 

Find a hobbyist with a CNC-milling machine, there are many forums out there.

 

It is not worth to use heatsink made all from copper (Physics).

 

You might want to try something like this first :

8x Mini Copper Memory Heat Sink RAM Heatsink Cooler Cooling for Laptop Computer | eBay

 

I already have this copper memory....

 

really???

 

me and you are the first to order them.....next??

 

Did you try it? Any results?

 

I dont think pure copper is good for various reasons including how quickly it can dissipate heat after it gets hot . Aluminum lets the heat go at a much faster speed . So copper would take longer to heat but would stay hotter much longer once it got there . It is something along those lines i read years ago when people were talking about having this done for an Alienware. Some Bill the science guy came along and explained why it was not such a great idea.

 

Yes full copper heatsinks are a bad idea. They tend to act as heat tanks, storing heat inside them. To be efficient you would need to dissipate really fast that heat. Also it has to be thin and made of pure copper (difficult to find). How do you do that with a conventional notebook fan? Phase shift cooling can accomplish that but things start becoming complicated. End result? 5 degrees lower..
I have tried that before when I had a Clevo D40EV with a Prescott Pentium 4 inside it (desktop CPU). Once I switched to a faster and less noisy fan, that's where I noticed the improvement: 13 degrees lower. Maybe I should build the same fan for my GT60. It's lower in height than the GT60 fan so it can suck more air in
I'll try once I get some free time

 

That is the point .

 

inform us please mate...

 

I have them but I didn't try them yet

 

I don't have pics unfortunately (I didn't take them at the time ). I got hold of a block of copper with similar dimensions as the original heatsink.



With this model it's easy to replace the original aluminum heatsink because heatpipes are straight and not curved. First I tried putting it as a block with the heatpipes attached on some canals I did before to seat them. Made holes for mounting, put paste and turned on. Upon startup it started getting warm. I checked temps and they were 58 degrees idle. Then I tried running prime95. It reached 99 degrees until it shut down. The whole heatsink block was very hot. I had forgotten that copper stored energy faster and that what I did was foolish :banghead:. Back to the drawing board. I made it thinner, just the distance between the heatpipes and the CPU core. Put it in and voila. Worked a lot better. Idle was 47-49 degree (down from the original 49-51). At prime95 it reached 89 degree but did not shut down (original got 94).

An idea came to mod a fan and replace the original noisy one (Clevos are really loud). I took this:

http://www.thermaltakeusa.com/products-model.aspx?id=C_00000515

Put some tape around to make it cover the whole fins of the heatsink and soldered the cable to the motherboard's fan connector. This spins fast and is a lot quieter than the original. It's a 12v fan. Clevo's fan was 5v so I made a voltage booster that would up-convert from 5v to 12v. Results: idle 45 degrees, prime95 it only reached 82 degrees. The fan made the biggest difference.

Now I'll try and mod this fan for my GT60 as doing those copper heatsinks again and ruining the original ones is not worth it. If this fan proves capable then we're set

Sorry for the long post guys
Back to work now