User's Manual

14 SPARC Enterprise M4000/M5000 Servers Product Notes for XCP Version 1050 • September 2007
Here are the DIMM mount conditions:
■ In each group, 4 DIMMs are mounted in a unit.
■ The capacity of the DIMMs in group A must be equal to or larger than the
capacity of the DIMMs in group B. You need not necessarily mount DIMMs in
group B.
■ In each of the groups, mount the DIMM of same capacity and of same rank. The
DIMMs of different capacity can’t be mixed in a group.
To replace with the DIMMs of different capacity or different rank, you need to
follow the above conditions on every memory board in the same CMU.