I recently bought the orange pi lite board. I purchased the heatsinks at the link below that were made for a raspberry pi.
https://www.amazon.com/gp/product/B01DLQIMPE/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
The larger one fits perfectly on the h3. The ram chip heat sink will fit but does not cover the entire ram chip. With the heatsink just sitting on top of the processor with no fan, with the board completely air exposed in a room approx 72 degrees, the orange pi indicates the processor temperature is 44C. With a cooling fan placed near by, with moderate air movement, the processor temp falls to 24-26C.
Both methods
cat /etc/armbianmonitor/datasources/soctemp
and
cat /sys/devices/virtual/thermal/thermal_zone0/temp
work great on the orange pi lite running armbian version 5.25
I am very pleased with armbians performance on this board. Runs reliably and stable. Have had it connected for approximately 20+days with no issue.
