Has the Xbox 360's PSU got a fan inside?

[agw_01]

Used to have my PSU behind my console, but recently moved my stuff around meaning that the PSU and console are a few feet apart.

Was tidying up wires around the PSU when I heard a humming sound... could this be the start of PSU problems and the end of my Xbox, I asked myself?

Picked the PSU up and you can hear a slight hum... as well as feeling a slight breeze coming from the vents.

Just done a quick search on Google but didn't bring anything up, so has the 360's PSU got a built-in cooling fan?

 

[agw_01]

No chance. PSU is a few feet in front of the console.

And the PSU isn't sealed. There are vents

Just held it to my ear, there's definitely a fan in there. Suprised I've not seen it mentioned before.

 

[agw_01]

Thought that it was well known that there's a fan in the PSU.

It's only since the PSU has been away from the console that I've noticed. I've never seen anything written down about it either.

A lot of people complain about it whining

Then those people are stupid I can only really hear it when I'm close to the PSU.