Lenovo x3530 M4 Installation And Service Manual page 50

10600 = 10.66 GBps (DDR3-1333 SDRAMs, 8-byte primary data bus)
12800 = 12.80 GBps (DDR3-1600 SDRAMs, 8-byte primary data bus)
14900 = 14.93 GBps (DDR3-1866 SDRAMs, 8 byte primary data bus)
17000 = 17.06 GBps (DDR3-2133 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 DDR3 SDRAM 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
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).
• Do not install registered and unbuffered DIMMs in the same server.
• The server supports 1.35-volt (low-voltage) and 1.5-volt DIMMs. Do not install a 1.35-volt and 1.5-volt
DIMM in the same server.
• The server supports a maximum of 12 DIMMs (single-rank, dual-rank, or quad-rank) on the system board.
If you mix single-rank, dual-rank, or quad-rank DIMMs in the server, quad-rank DIMMs must be installed
first. When one quad-rank DIMM is installed, it must be installed in DIMM slot 1.
• The DIMM options that are available for the server are 2 GB, 4 GB, 8 GB, 16 GB, and 32 GB (when
available).
• The server system board supports a minimum of 2 GB and a maximum of 96 GB of system memory.
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. For additional information, see "Configuring
the server" on page 80.
• The server system board provides three memory channels for each microprocessor and each memory
channel supports up to two DIMMs. The following table lists the DIMM connectors on each memory
channel:
Table 4. DIMM connectors on each memory channel
Microprocessor
Microprocessor 1
Microprocessor 2
• The following table shows the DIMM connectors that are associated with each microprocessor:
Table 5. DIMM connectors associated with each microprocessor
Microprocessor
Microprocessor 1
Microprocessor 2
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Lenovo System x3530 M4 Installation and Service Guide
Channel 0
DIMM connectors 1 and 2
DIMM connectors 7 and 8
Channel 1
DIMM connectors 3 and 4
DIMM connectors 9 and
10
DIMM connectors associated with the
microprocessor
1 through 6
7 through 12
Channel 2
DIMM connectors 5 and 6
DIMM connectors 11 and
12