Installing A Memory Module (Dimms) - Lenovo ThinkServer RD210 Hardware Maintenance Manual

7. If you are instructed to return the DIMM, follow all packaging instructions, and use any packaging
materials for shipping that are supplied to you.

Installing a memory module (DIMMs)

The following notes describe the types of DIMMs that the server supports and other information that you
must consider when you install DIMMs :
• The server supports only industry-standard double-data-rate 3 (DDR3), 800, 1066, or 1333 MHz,
PC3-10600R-999 (single-rank or dual-rank), registered, synchronous dynamic random-access memory
(SDRAM) dual inline memory modules (DIMMs) with error correcting code (ECC).
– The specifications of a DDR3 DIMM are on a label on the DIMM, in the following format.
gggeRxff-PC3-wwwwwm-aa-bb-cc
where:
– ggg is the total capacity of the DIMM (for example, 1GB, 2GB, or 4GB)
– e is the number of ranks
1 = single-rank
2 = dual-rank
4 = quad-rank
– ff is the device organization (bit width)
4 = x4 organization (4 DQ lines per SDRAM)
8 = x8 organization
16 = x16 organization
– wwwww is the DIMM bandwidth, in MBps
6400 = 6.40 GBps (PC3-800 SDRAMs, 8-byte primary data bus)
8500 = 8.53 GBps (PC3-1066 SDRAMs, 8-byte primary data bus)
10600 = 10.66 GBps (PC3-1333 SDRAMs, 8-byte primary data bus)
12800 = 12.80 GBps PC3-1600 SDRAMs, 8-byte primary data bus)
– m is the DIMM type
E = Unbuffered DIMM (UDIMM) with ECC (x72-bit module data bus)
R = Registered DIMM (RDIMM)
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ThinkServer RD210 Hardware Maintenance Manual