GET A UPS DEVICE!

a UPS protects your node in case of an unclean shutdown such as a power outage. It only has to have enough battery capacity to trigger a clean shutdown of your node of which any clients such as Rocketpool will also shut down cleanly. You can go into your bios settings (F2 on startup) to enable the mini PC to reboot when power is redetected and Rocketpool will also automatically restart itself.

I followed this guide to setup a CyberPower UPS. On testing, it feelsd like absolute magic for the power to switch instantly over to the battery, trigger a shutdown at 35% capacity and then reboot on power being restored.
github.com/trevhub/guides/blob/main/CheapUPS.md

I didn't do this and have now been suffering for a couple of weeks trying to resync my node but it seems that the unclean shutdown has harmed my RAM or SSD. I havent got physical access at the moment so am unable to determine what exactly is the problem since I cant test it remotely (like memtest)

If you operate a node (or other devices) remotely via ssh then definitely check out tailscale. I was having issues sshing into my node at a new location and the guys in rocketpool discord advised me to try it.. It's great.

You simply install on all the devices you want to connect and then simply ssh toast[localhost:3000/u/ethnode](@ethnode%60) eg and thats it. done. very easy and secure personal network no matter where you and your devices are.