File talk:Computer case coolingair flow.png

Unrealistische Darstellung

Die Darstellung in diesem Schaubild ist vollkommen unrealistisch und nicht den physikalischen Gegebenheiten entsprechend. Der Netzteillüfter wurde vergessen. Über die Festplatten strömt Luft zu den hinteren Lüftungslöchern, ohne dass sie von irgeneinem Lüfter angetrieben wird.

This schematic illustration is completely unrealistic and following the laws of physics. The power supply fan is missing. There is air flow across the disks to the rear vent holes without being driven by any fan.

--87.147.174.216 (talk) 08:50, 20 November 2012 (UTC)

This is not only realistic. This is real case - Chieftec Dragon mini. In fact, I modified my cheap case to function exactly the same way. Nobody forgot power supply fan - its simply too weak to consider anything "efficient". Modern PSUs do not pump air constantly - they pump air ONLY when the temperature is high enough (~50C) - at this temperature, it already means the case is overheating. Instead, it is way better to ignore PSU and generate the airflow omitting PSU.

If you look on top of tower - you see it. In fact, the top fan is so efficient, one can close all other side openings. This will play-out positively, because it will generate sucktion effect inside. But top fan is not working alone here, (and in my case too), because:

"The air flow across disks" is generated by frontal 120mm fan hidden just behind the front panel, between panel and disks module. I have done exactly same thing, also inserted metal grill in front of the fan and wired it to the case. As all electronics are grounded on case and PSU is grounded to cable AND case - this means the metal grill always has small electrostatic charge, working exactly like a dust magnet.

In this case, there are three fans generating airflow - one in front panel, 120 or 80mm and two blasting out - top and rear. Actually one blasting out on top would be sufficient already. I have Phenom II X6 and 27cm long HD5870 in Minitower. In my tower, with very similar configuration to those on the picture, I get 50C at full load and around 24C on idling (with 2-5C delta to external temp). 217.50.174.30 (talk) 02:12, 5 October 2013 (UTC)