So I recommend to those who have problems similar to this, first to terminate the synchronization process of the entire blockchain and deactivate the mining process by holding Apollo Full Node in a not too hot environment and then when the node has finished synchronizing all the blockchain start the mining process.
Yep, overheating of Orange Pi 4 controller is causing a lot of trouble, as we discussed earlier in the thread.
As crypto_curious said, ideally it would have a bit more space between the SBC and hashboard, at least that way you could install a slightly thicker fan for better cooling. I found it difficult to source a replacement fan in the thickness thats required (6mm) most were 10mm, which IMO wouldve been the better choice for cooling and noise levels.
Yes I'd love to see that improvement, or something similar. Just a little bit more of breathing space.. and thicker fan would fit no problem.
Issue with cooling on the SBC is only relevant for 100% CPU load sustained for hours and either a hot environment or running mining past ECO. This should only happen during initial node sync and we recommend everyone to either not mine during this time or make sure its in a cool environment in eco mode.
Its not worth putting in a faster/noisier fan for a very small case/usage pattern of the device and is a trade off we intentionally made.