Power & Source of Big Ideas

Hello Everyone, as you might have also noticed, the NEO3 is running very hot inside the white plastic box. I have already got the top of the enclosure off, which helped a bit, but it is still quite hot, so I need to think of some kind of cooling. I would like to install a fan. I am a newbie to SBCs....
Mine runs around 70 C when idle and goes up to around 87 when under load on Armbian (idle is around 68 with the ubuntu image), but honestly I haven't put it under load really. I opened the plastic case, now the heat sink is exposed, temperature dropped to 55 C...