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v The following table lists the supported RDIMM population.
Table 11. Supported RDIMM population per channel
DIMM connectors
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 RDIMMs.
Table 12. Maximum memory population using ranked RDIMMs (depending on your model)
Number of RDIMMs DIMM type 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 shows the RDIMM memory population rule to optimize the system performance.
Table 13. RDIMM population rule for dual-channel symmetric mode
DIMM connector
1
DIMM connector
2
DIMM connector
3
DIMM connector
4
DIMM connector
5
DIMM 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
Note: The amount of usable memory is reduced, depending on the system configuration. A certain
amount of memory must be reserved for system resources. To view the total amount of installed
memory and the amount of configured memory, run the Setup utility.
Removing a memory module
To remove a DIMM, complete the following steps:
1. Read the safety information in “Important Safety Information” on page 1 and “Guidelines for trained
service technicians” on page 115.
2. Turn off the server and peripheral devices and disconnect the power cords and all external cables, if
necessary.
3. Remove the cover (see “Removing and installing the cover” on page 119).
124 ThinkServer ThinkServer RS210, Types 6531, 6532, 6533, and 6534: Hardware Maintenance Manual