I have built a portable gaming rig in a mini brief case. It has a Pi, large battery pack, mini speakers and a small step-up transformer. The pi is clocked at 900mhz. My question is this; it will all be covered by a perspex sheet to be fully enclosed. I will be drilling holes to create air vents over the pi itself. But would I need a small fan to actively cool it? Or will the vents suffice. It will be well enclosed but I was hoping that air vents directly over the RPi would be ok. Anyones thoughts?
(Im still waiting for the step up transformer to arrive but it will go in the top right)