This picture could explain two structures are how to work. And GPU cover CPU on the top. with dual 9025+dual 9015 fans. A wind tunnel similar to the chimney can be formed in the whole cabinet, so that the whole airflow direction can be in accordance with the thermodynamic form. and I Cancel the fan on the radiator, to increase the volume of the radiator, through this way, so compared with the case of A4-sfx, the whole radiator volume increased nearly doubled, and the heat flow, there is no heat deposition problem, from the actual usage, this structure is now there is a still unresolved part is the card back near the radiator, in some CPU low load ear GPU high load condition, CPU radiator will because of this reason the temperature rise.
For the AIO model, the heat sink was moved to the bottom of the box, inhale through two 12015 fan, rising air can take away some chips such as PCH, or graphics backplane heat, ensure the box does not appear to deposit in the heat.
The extension plan now, is an important improvement, the first extension line of the cost is very high, and can not guarantee the stability of long time use, and PCB connections can solve these two problems; second, the whole box does not appear to flow, like the A4-SFX chaos third, effectively increases the volume of the radiator and it is crucial to a small box, because in the Sff case, compared with the large case radiator is very small, so increasing the volume of the radiator fan is more important than actually increased, the structure of micro and solve these two problems; finally, to Non-Reference card, most of the heat will be directly blow into the box, if there is an auxiliary air duct to ensure that heat is removed, it is fatal for the small chassis, which is Why I open the hole on the connector.