QUOTE(undmor @ Dec 20 2010, 11:17 PM)
very simple, you can massure with your hand and if you install the fan blowin in, the air that comes out is colder then when you install the fan blowin out.
and with a fan replacemant you have a absoloutly unherable xbox 360 slim.
its like a pc cpu cooler, all of the pc coolers have fans blowin right to the cpu heatsink, and why, cuz its more effective.
so always remember, blowin is better then sucking (oh man how pervert that sounds)...
That's a pretty unreliable test.
To an extent, hot air coming out is a good thing, at least then you know the heat is being removed.
PC's have a much bigger cavity, and also intake/exhaust fans to expel the heat blown away from the heatsink. It's all about a good air flow throughout the system.
I'm not trying to bash what you've done at all. But I would be interested to know an actual temp reading.
How come it over heated when placed the other way around? (apart from showing that it's less effective) does the fan have a lower rpm/cfm than the stock fan? Do you have it running at a fixed speed, rather than auto adjusted by the xbox. Just find it strange that it would over heat if it was doing the same job as a stock fan.