The ITX board almost looks dwarfed by the size of a mATX case; but don't worry, that empty space will soon be filled with our massive Orochi heatsink!
First let's remove the fan at the front to give us a little more room and tidy up the insides of the case while we're at it.
Popping out the front grill is no problem really, but removing the fan is another matter.
After much confusion and fruitless attempts, I finally figured out how to remove the front mesh from the fan mount. This has to be removed in order to gain access to the fan mounting screws.
These small clips on the side are the reason for much frustration in attempting to remove the grill. But once you do it you discover the 'knack' for getting it off easily.
A noteworthy feature is the inclusion of a soft fine mesh screen on the mounting bracket, acting as a large particle dust filter. For this I am thankful my systems always end up caked in dust no matter how hard I try to prevent it.
The fan is really quiet for a 100mm variety; good work there Silverstone!