Just had a thought whilst poking around in my case; it's a Cosmos S with the PSU mounted at the bottom rear...
Which way should the PSU be sitting? With the fan facing upwards (sucking air out of the case and through the PSU) or facing downwards (sucking air into the PSU from outside and then out the back)?
The Cosmos S has an intake and dust filter underneath the PSU mounting point, so I assumed that the fan should be orientated to suck air in through this... But now I'm not sure?
Thanks for your advice/thoughts