Lenovo Flex System x222 Compute Node Руководство по эксплуатации - Страница 12
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Lenovo DDR3 memory is compatibility tested and tuned for optimal performance and throughput. Memory
specifications are integrated into the light path diagnostics panel for immediate system performance
feedback and optimum system uptime. From a service and support standpoint, Lenovo memory
automatically assumes the Lenovo system warranty, and Lenovo provides service and support worldwide.
The servers in the x222 supports Low Profile (LP) DDR3 memory RDIMMs and LRDIMMs. UDIMMs are
not supported. Each of the two servers in the x222 has 12 DIMM sockets. Each server supports up to six
DIMMs when one processor is installed and up to 12 DIMMs when two processors are installed. Each
processor has three memory channels, and there are two DIMMs per channel.
The following rules apply when you select the memory configuration:
The memory configurations on the two servers in the x222 can be different, however for factory
orders, the initial memory configuration selected must be identical.
Mixing 1.5 V and 1.35 V DIMMs in the same server is supported. In such a case, all DIMMs operate at
1.5 V.
The maximum number of ranks that are supported per channel is eight.
The maximum quantity of DIMMs that can be installed in each server in the x222 depends on the
number of processors, as shown in the "Max. qty supported" row in the following table.
All DIMMs in all processor memory channels operate at the same speed, which is determined as the
lowest value of the following situations:
The memory speed that is supported by a specific processor.
The lowest maximum operating speed for the selected memory configuration that depends on the
rated speed, as shown under the "Max. operating speed" section in the following table. The
shaded cells indicate that the speed that is indicated is the maximum speed that the DIMM
allows.
Flex System x222 Compute Node
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