The cooling principle in detail – theoretically
The fact that this very unusual path was taken may be mainly due to the idea of getting the waste heat out of the case as directly as possible, similar to the DHE (Direct Heat Exhaust), without filling the interior with warm and swirling air. This is a laudable intention, but it also calls for new approaches. Gigabyte uses a kind of chimney cooler for the first time, which has inverted fans on the upper side. These fans draw air away from the board, up through the cooling chambers, and then release it through a side panel opening in the case.
Due to the design, only fans with a maximum diameter of 4cm can be used with a 3-slot card, which is not a silent solution. In order to achieve any appreciable throughput at all with these small fans, the iron rule applies, as in motorsports, that small motors require huge speeds. In this case, the maximum possible speed is approx. 10,000 rpm.
If you remove the cooler, which is attached to the PCB with only 6 screws, the PCB is already exposed and you can first take a look at both parts.
A total of 9 copper heapipes, each 6mm in diameter, dissipate heat from the oversized vapor chamber to the aluminum fin block, whose tubular chimney shape ensures that no air can escape to the side.
Let’s take a quick look at a photo montage that shows us the position of the PCB and the cooling block. Good to see the two components and the overlays:
In the following detailed picture, we once again see the transition from the vapor chamber into the 4 heat pipes to the rear part of the cooler including the contact area for cooling the coils and the voltage converters. The air tubes and the few, partially opened air ducts for the air outlet for indirect cooling of the board’s upper side can also be seen well.
As perfect and tremendous as all this may look, the implementation in practice also raised some questions, which we will describe on the next page.
9 Antworten
Kommentar
Lade neue Kommentare
Veteran
1
Veteran
Veteran
Urgestein
Mitglied
Veteran
Urgestein
Mitglied
Alle Kommentare lesen unter igor´sLAB Community →