I need to upgrade my E3-1275 v5 + Supermicro X11SSZ-TLN4F-O mobo. When I say I need to upgrade it I don't need to from a performance point of view but my eldest son needs a new PC for his school work ...

Hey C&MT, it's been a while for me. I'm putting together a passively-cooled Qotom system (Atom C3758R) to become a new OPNsense router... More accurately, it will probably run Proxmox, with the router ...