Lenovo 6528 - Manual (Page 57)

v The following table lists the supported RDIMM population.
Table 9. Supported RDIMM population per channel
DIMMs slots
per channel DIMMs installed
in each channel DIMM type
DIMM speed
Ranks per
DIMM (any
combination)
3 1 Registered
DDR3 ECC 1066, 1333 single-rank,
dual-rank
3 2 Registered
DDR3 ECC 1066, 1333 single-rank,
dual-rank
3 3 Registered
DDR3 ECC 800 single-rank,
dual-rank
3 1 Registered
DDR3 ECC 1066 quad-rank
3 2 Registered
DDR3 ECC 800 quad-rank
v The following table lists the maximum DIMM population using ranked RDIMM.
Table 10. Maximum memory population using ranked RDIMMs (depending on your model)
Number of RDIMMs DIMM type DIMM size Total memory
6 single-rank RDIMMs 1 GB 6 GB
6 single-rank RDIMMs 2 GB 12 GB
6 dual-rank RDIMMs 2 GB 12 GB
4 dual-rank RDIMMs 4 GB 16 GB
4 quad-rank RDIMMs 4 GB 16 GB
6 dual-rank RDIMMs 4 GB 24 GB
4 quad-rank RDIMMs 8 GB (when
available) 32 GB
v The following table lists the RDIMM memory population rule to optimize the
system performance.
Table 11. RDIMMs population rule for dual-channel symmetric mode
DIMMs
connector 1 DIMMs
connector 2 DIMMs
connector 3 DIMMs
connector 4 DIMMs
connector 5 DIMMs
connector 6
populated empty empty empty empty empty
populated empty empty populated empty empty
populated populated empty populated populated empty
populated populated populated populated populated populated
See “System-board internal connectors” on page 19 for the location of the DIMM
connectors on the system board.
Attention: Static electricity that is released to internal server components when
the server is powered-on might cause the server to stop, which could result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when working inside the server with the
power on.
Chapter 5. Installing and replacing optional devices 41