Dimm Slot Population Rules For Differently Ranked Dimms - Fujitsu D3144 Technical Manual

Features
3.2.1.2

DIMM slot population rules for differently ranked DIMMS

Basic configuration rules for populating the two slots associated with the same
DDR3 channel are:
The slot with the lower sequence number is populated first.
●
1rank and 2 rank DIMM memory modules can be inserted in both slots.
●
4 rank DIMM memory modules must be installed in the slot with the lower
●
sequence number or in both slots.
Table 4 shows the supported DIMM configurations with mixed DIMM rank.
DIMM# x/2 DIMM# x/1
4 rank 4 rank
2 rank 4 rank
1 rank 4 rank
not installed 4 rank
2 rank 2 rank
1 rank 2 rank
not installed 2 rank
2 rank 1 rank
1 rank 1 rank
not installed 1 rank
not installed not installed
Table 4: Supported DIMM configurations with mixed DIMM RANK
24 Technical Manual
D3144, D3145, D3146 (RX900 S2)