Registered Dimms (Rdimms) - Lenovo ThinkServer TS200 6522 Hardware Maintenance Manual

v DIMM slots 3 and 6 are not supported when you install UDIMMs in the server. Do not install DIMMs
in these connectors.
v The following table lists the supported UDIMM population.
Table 8. Supported UDIMM population per channel
DIMMs slots per DIMMs installed in
channel each channel
2 1
2 2
v The following table lists the maximum DIMM population using ranked UDIMM.
Table 9. Maximum memory population using ranked UDIMMs (depending on your model)
Number of UDIMMs
4
4
4
4
v The following table lists the UDIMM memory population rule to optimize the system performance.
Table 10. UDIMMs population rule for dual-channel symmetric mode
DIMMs DIMMs
connector 1 connector 2
populated empty
populated empty
populated populated

Registered DIMMs (RDIMMs)

The following notes provide information that you must consider when you install RDIMMs (see
"System-board internal connectors" on page 118 for the location of the DIMM connectors):
v The memory channels run at the fastest common frequency of the installed DIMMs.
v Do not use both RDIMMs and UDIMMs in the same server.
v The server supports up to three single-rank, dual-rank, or quad-rank RDIMMs per channel.
v The RDIMM options that are available for the server are 1 GB, 2 GB, 4 GB, and 8 GB (when available)
memory DIMMs.
v You can install a maximum of 32 GB of memory in the server when you use RDIMMs.
v The following table lists the supported RDIMM population.
Table 11. Supported RDIMM population per channel
DIMMs slots per DIMMs installed in
channel each channel
3 1
3 2
136
ThinkServer TS200 Types 6522, 6523, 6524, 6525, 6526, 6528, 6529, and 6530: Hardware Maintenance Manual
DIMM type
Unbuffered DDR3
ECC
Unbuffered DDR3
ECC
DIMM type
single-rank UDIMMs
single-rank UDIMMs
dual-rank UDIMMs
dual-rank UDIMMs
DIMMs
connector 3
empty
empty
empty
DIMM type
Registered DDR3
ECC
Registered DDR3
ECC
DIMM speed
1066, 1333
1066, 1333
DIMM size
1 GB
2 GB
2 GB
4 GB (when available)
DIMMs DIMMs
connector 4 connector 5
empty empty
populated empty
populated populated
DIMM speed
1066, 1333
1066, 1333
Ranks per DIMM
(any combination)
single-rank, dual-rank
single-rank, dual-rank
Total memory
4 GB
8 GB
8 GB
16 GB
DIMMs
connector 6
empty
empty
empty
Ranks per DIMM
(any combination)
single-rank, dual-rank
single-rank, dual-rank