218 Installing System Components6 Rotate the bent load lever down until it snaps into place.7 Rotate the hook-shaped socket-release lever down until it snaps into place.See Figure 3-59.8 Replace the heat sink. See "Installing a Heat Sink" on page 214.9 Replace the cooling shroud. See "Installing the Cooling Shroud" onpage 211.10 Close the sled. See "Installing the Front and Back Sled Covers" onpage 165 or "Installing the Sled Cover" on page 168.11 Replace the sled. See "Installing a Sled" on page 142.12 Press to enter the System Setup and check that the processorinformation matches the new system configuration.System MemoryEach system board has 16 memory module sockets for the installation ofDDR3 unbuffered ECC DIMMs (ECC UDIMMs), registered DIMMs(RDIMMs), and load reduced DIMMs (LRDIMMs) to support processor 1and processor 2. See "System Board Connectors" on page 279 for the locationof the memory modules.Memory Module Installation GuidelinesFollow these guidelines when installing memory modules on the sled systemboard.• 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. Thenumber of channels used and the allowable configuration depend on thememory mode selected in the System Setup program.• DIMMs must be installed in each channel starting with the DIMM socketfarthest from the processor, per Table 3-5 .• Memory optimized mode is supported on the sled system board.
