I have my empeg in a very tight installation and had the unit reboot and lock up several times while in this hot condition.
and let me tell you it gets too damn hot! I am very educated in electronics and if theres one thing I know it's HEAT KILLS ELECTRONIC Equip!!!
A curious question I kept asking myself, and now I must ask someone from empeg...... Why put a fan mount in the top cover and not put the fan??? not an impressive move on empegs part in my opinion. I am not interested in the heat specs empeg lists in the manual. If it's too hot to touch and hold your hand on (as mine was).... then it's too hot!!!
anyhow I aquired my own fan to fit the holes on the top of the unit and my troubles went away. I am thinking that empeg must do something about this at some point.
It's only gonna get hotter when you add your second drive.

12Gb MKII 080000516 Blue