My RockPI 4a has been rebooting once every couple days, usually under load, but nothing crazy. Mostly file server activity, I was streaming videos from it to jellyfin/chromecast the first couple times it rebooted. And today I was copying files to USBs. So pretty constant file server for 1+ hours each time.
I have the large radxa heatsink installed, no fan. It’s sitting on the heatsink, with the SBC above the heatsink. CPU temps according to htop in armbian range from 45-50C (shown in red).
I’m wondering if these temps are the cause of the reboots. I’m also wondering if I’ve got SD card problems. But any advice on the CPU temps would be appreciated. I had to move the SBC around several times lately, so IDK if maybe the heatsink isn’t seated as well as before.