Nothing much to update here. The android stick is chugging along just fine. But I always wanted to do something about its cooling as it often reboots after half an hour of playing video intensive games.
I found cheap heat sinks off eBay that were meant for Raspberry Pi. They come in 2 sizes, 10x10mm and 15x15mm. I used the 15x15mm.
First, I pop open the case and place the heatsink on top of the RK3188. The size seems okay. I align the case and make some marks.
Then, I use a dremel to cut a hole. I want the case to help hold the heat sink in place because I only have thermal paste and don't have thermal adhesive sticker. I then finish off the sides with an utility knife to make sure the heat sink fits tightly.
Finally, I apply the thermal paste, close the case and push the heat sink in place.
After running it for one and a half hour, it is still holding up. I would give it a pass. However, if I have to do it again, I would get a 20x20mm or even 22x22mm heat sink and one that is taller. The heat sink is definitely too hot to touch. I have to wonder how long it could last without one at all.
