I have (2) T610 servers, one with (2) 2GB DIMMs in A1 and A2, the other with (2) 2GB DIMMs in A2 and A3.

I tried putting (2) 4GB DIMMs in A4 and A5 and A5 and A6 (respectively) and get a E2011 error.

Do I need to put a third 2GB DIMM in A3 and A1, then fill the other three slots with 4GB DIMMs?