Lenovo 5457 Installation And Service Manual page 278

Table 35. Supported UDIMM population per channel
DIMM connectors
DIMMs installed in
per channel
each channel
2 1
2 2
The following table lists the maximum DIMM population using ranked UDIMMs.
Table 36. Maximum memory population using ranked UDIMMs (depending on your model)
Number of UDIMMs
4
4
4
4
The following table shows the UDIMM memory population rule to optimize the system performance.
Table 37. UDIMM population rule
DIMM connector 1
Populated
Populated
Populated
The following illustration shows the location of the DIMM connectors on the system board.
Note: The illustrations in this document might differ slightly from your model.
Lenovo System x3100 M5 Installation and Service Guide
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DIMM type
Unbuffered DDR3
ECC
Unbuffered DDR3
ECC
DIMM type
Single-rank UDIMMs
Dual-rank UDIMMs
Dual-rank UDIMMs
Dual-rank UDIMMs
DIMM connector 2
Empty
Empty
Populated
DIMM speed
1333, 1600
1333, 1600
Size
1 GB
2 GB
4 GB
8 GB (when available)
DIMM connector 3
Empty
Populated
Populated
Ranks per DIMM
(any combination)
Single-rank, dual-
rank
Single-rank, dual-
rank
Total memory
4 GB
8 GB
16 GB
32 GB
DIMM connector 4
Empty
Empty
Populated