PC-Engine said:
You're not seeing the big picture. Sure the noise will be coming from the fan, but if you're using a liquid cooling solution then you can use a less powerful fan since the a liquid solution is more efficient than a nonliquid solution.
That's a reasonable assumption, had the X360 been equipped with liquid cooling, which it IS NOT.
It supposedly has a heatpipe cooler according to very sketchy reports, which does not qualify as "liquid cooling", mainly because it isn't any liquid that does the cooling but rather a gas. If anything, it might qualify as a sort of phase-change cooler, but in reality it's just an improved version of a bog-standard heatsink.
Also, DC did not have liquid cooling EITHER, that was a heatpipe as well.
And a great many millions of PS2s also had heatpipe-equipped coolers, but nobody ever made any big deal out of that.