I've just had to reset my CMOS after a failed overclock attempt and I was quite surprised to find it was very awkward to do! The CMOS jumper is buried at the front of the case, and whilst tweezers got the jumper off, because of the angle I couldn't get it back on.
So I had to remove the front panel then unscrew the metal plate that surrounds the front ports (see pic).
Is this the norm on SFFs or just the Biostar? Not that its going to make me dump the little machine - I still love it!