hey /g/ so I have this pc from 5 or so years ago (I didn't build it) and was wondering if I should upgrade this one or start with a brand new one.

motherboard: asus p7h55
cpu: i5 661 (i think it's lga 1156)
ram: 4gb idk what kind
no graphics card lol just used integrated i think
case: some shitty 10 dollar "konic" branded case they had in some store (basically pic related)
psu i believe is 450w, could be wrong (konic brand again, whatever the fuck that is)

is any of this actually worth anything or am I better off just getting new parts?