IBM System x3400 M3 small-office server teardown Summary: Bill Detwiler cracks open the IBM System x3400 M3 small-office server in this TR Dojo teardown gallery. By Bill Detwiler | August 10, 2010 -- 06:13 GMT (23:13 PDT) Follow @billdetwiler Previous | Next Image 59 of 84 The IBM System x3400 M3 can support up to 128GB of RDIMM memory in 16 DIMM slots, or up to 24GB of UDIMM memory in 12 slots. Our test system had 16 slots.Photo credit: Bill Detwiler / TechRepublic Topics: IBM, Servers Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.