April 21, 2018 at 6:59 pm #142173
- Posts: 466
Let´s start with the magic copper shimmy
You put a small piece of copper between the metal surface of the CPU/GPU and the metal cooling plate what is screwed to provide good contact between the processor and cooling plate. So far so good.
Now to the problems, the cut out cooling plate is a cheap piece of metal, copper if you are lucky.
The real contact surface between the processor and the cooling plate is not 100% level and not 100% smooth.
So if you press the 2 pieces together you have very little real contact points. We are talking now in the thinner than a hair size.
This is where the paste or pad comes into play. Both are just used to fill the micro gaps and get the insulating air pockets squeezed out. So thick pads and a lot of paste is the wrong approach since they actually reduce the heat transfer.
If you use pads, try to get counter pressure direct from the backside where the pad is installed, because the few screws from the cooling plate will not put the main pressure on the pad.
If you use a copper shimmy be aware that you add a third metal piece between the metal surface of the processor and the metal of the cooling plate.
If you look closer at a shimmy you might notice imperfections where they are cut out. Take a close look at the pictures.
Since the shimmies are bigger than the processors I will just let the little grate hang over the side. It would not be a good idea to have it on top in contact with the cooling plate, that would leave quite a gap the paste had to fill.
This concludes part 1 of the be cool lesion.
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English is not my main language, all typos I shall blame that my Jumper keyboard is acting up again.May 20, 2018 at 1:23 pm #143179
- Posts: 2
aliexpres link ?
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