oldest running hardware eh,
i got a Pentium E2160, Asus P5KPL-AM, and 2GB of DDR2 running office spreadsheets at my office.
still running strong, no hiccups whatsoever, apart from it being rather slow
the other PC i have is a Core 2 Duo E7400, Asus P5Q3, and 4GB of DDR3, it is stored now, but last time i check it is still posting
i forgot where i put my Corsair Force GT 120GB, maybe in my parents laptop, still running strong till today
i also still using the old Altec Lansing ATP-3, running strong as a music player at the bedroom
for my own PC, its the Hitachi Deskstar 500GB HDD from 2007, which is still at 100% now.
been running strong, been using it just for temporary storage before i move it to the appropriate folder