System Memory
Each system board has 16 memory module sockets for the installation of DDR3 unbuffered ECC DIMMs (ECC UDIMMs), registered DIMMs (RDIMMs), and load reduced DIMMs (LRDIMMs) to support processor 1 and processor 2. See "System Board Connectors" on page 219 for the location of the memory modules.
Memory Module Installation Guidelines
Follow these guidelines when installing memory modules on the sled system board.
•Use only Dell approved R/LR/UDIMM DDR3 memory modules in 2 GB, 4 GB, 8 GB, 16 GB, and 32 GB capacities. DIMM types (R/LR/UDIMM) cannot be mixed.
•DIMM slots are numbered 1 to 8 and designated by two channels. The number of channels used and the allowable configuration depend on the memory mode selected in the System Setup program.
•DIMMs must be installed in each channel starting with the DIMM socket farthest from the processor, per Table
•Memory optimized mode is supported on the sled system board.
•Memory sparing and memory mirroring are supported on the sled system board. Memory sparing requires that all the DIMMs are identically populated in all 4 channels. One channel will be the spare and not accessible as system memory until brought online to replace a failing channel. For memory mirroring, two channels operate as mirrors for each other, identical DIMMs must be installed in the same slots across both channels.
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Installing System Components
