First off, my system is 99% similar to this one here: http://parker1.co.uk/mythtv_silent.php
The only difference with my system is the GPU and the PSU.
As above, I plan on making this PC a MythTV box. i have been in contact with the owner of the above box, and he said that the PC is silent, and i was 99% sure I would just change my PSU to be the same as his (as my current PSU is noisy) and I would be set... but... then I began to wonder.
How fanless can I go. In the PC (both the linked example and mine) there is only the one fan, in the PSU. This pulls enough air through to cool the system.
I thought about using a fanless PSU. But having no fans at all in the setup might not be a good idea? So maybe a Fanless PCU but a silent case fan to pull air through.
Or a PSU with fan and no case fan?
Im rambling on a bit. my question is: What would you think was quietest? A Fanless PSU and a 120mm Case Fan or a Silent PSU with 120mm fan and no case fan?