Asus Z 390-ASerial Port -- Not required. TMP -- Not required (extra hardware you probably don't have).
Node connection -- I don't recognize the term.
What motherboard are we talking about?
OK,thank youOK, the "node" is an Asus unique thing that allows an OLED display to attach. See this video --View: https://youtu.be/wpHxDqGUkIg
Obviously is is not required.