Lenovo TD200 - ThinkServer - 3809 Hardware Maintenance Manual page 220

options for the server, see http://www.lenovo.com/thinkserver; then, select your country and navigate to
the list of options for the server.
– 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)
U = Unbuffered DIMM with no ECC (x64-bit primary data bus)
– aa is the CAS latency, in clocks at maximum operating frequency
– bb is the JEDEC SPD Revision Encoding and Additions level
– cc is the reference design file for the design of the DIMM
– d is the revision number of the reference design of the DIMM
• The server supports a maximum of 12 single-rank or dual-rank DIMMs.
Note: To determine the type of a DIMM, see the label on the DIMM. The information on the label is in the
format xxxxx nRxxx PC3-xxxxx-xx-xx-xxx. The numeral in the sixth numerical position indicates whether
the DIMM is single-rank (n=1) or dual-rank (n=2).
• The server supports three single-rank or dual-rank DIMMs per channel. The following table shows an
example of the maximum amount of memory that you can install, using ranked DIMMs.
Table 7. Maximum memory installation using ranked DIMMs
Number of DIMMs
12
12
12
• The DIMM options that are available for the server are 1 GB, 2 GB, 4 GB, and 8 GB (when available). The
server supports a minimum of 2 GB and a maximum of 96 GB of system memory.
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ThinkServer TD200 Hardware Maintenance Manual
DIMM type
Single-rank DIMMs
Dual-rank DIMMs
Dual-rank DIMMs
DIMM size
4 GB
4 GB
8 GB (if available)
Total memory
48 GB
48 GB
96 GB