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JEMC said:
EricHiggin said:
Kinda hard to tell, but doesn't look like there's any fan at the base where the PSU is. So one big fan at the top sucking air in and blowing it down and out of those exhaust holes at the rear? They wouldn't pull air in through the PSU from the base first would they? It's always been through the console and heat sinks first and then past the PSU before the hot air exits. You don't really want hot PSU air being used to cool the APU heat sink.

The way I see it, the air will come in from the bottom intakes and leave from the top. After all, hot air goes up, and using the top fan to draw air inside would go against it, making it less efficient.

To avoid the use of warm/hot air to cool the APU, it's possible to use one of the air intakes for the PSU, with the warm air going then into the console, while the other intake goes straight in to the console to cool the APU and other components, and then mixing with the air coming fom the PSU and leaving from the top.

It looks like the bottom is all one PSU unit, but definitely can't say that for sure based on the single pic available. It could be as you said, that one side is for PSU air intake and the other is more for the rest of the console and heat sink. The air could combine once it's through the PSU, or the PSU could possibly have a separation shroud that went all the way up to the top fan so that heat didn't mix internally, yet all get's exhausted together at the top. With there being extra holes at the rear that are blocked right now, it would seem they are still testing the airflow and temps, and fine tuning how much internal vacuum to create and how much air is allowed to pass through. You don't want too much vacuum as that will pull in more dust.