Dell PowerEdge R220 Owner's Manual

Also see for PowerEdge R220: Technical guide Technical guide

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Dell PowerEdge R220 Owner's Manual Manual pdf 45 page image

channel 1: memory sockets 1 and 3channel 2: memory sockets 2 and 4The following table shows the memory populations and operating frequencies for the supportedconfigurations.DIMM Type DIMMs Populated/Channel Operating Frequency (inMT/s) Maximum DIMM Rank/Channel1.35 VUDIMM ECC 1 1333, 1600 Dual rank2 1333, 1600 Dual rankGeneral Memory Module Installation GuidelinesNOTE: Memory configurations that fail to observe these guidelines can prevent your system frombooting, hanging during memory configuration, or operating with reduced memory.This system supports Flexible Memory Configuration, enabling the system to be configured and run inany valid chipset architectural configuration. The following are the recommended guidelines for bestperformance:• x4 and x8 DRAM based DIMMs can be mixed.• Populate all sockets with white release tabs first, and then black.• Populate the sockets by highest rank count in the following order – first in sockets with white releaselevers, and then black. For example, if you want to mix quad-rank and dual-rank DIMMs, populatequad-rank DIMMs in the sockets with white release tabs and dual-rank DIMMs in the sockets withblack release tabs.• Memory modules of different sizes can be mixed provided that other memory population rules arefollowed (for example, 4 GB and 8 GB memory modules can be mixed).• If memory modules with different speeds are installed, they will operate at the speed of the slowestinstalled memory module(s) or slower depending on system DIMM configuration.Sample Memory ConfigurationsThe following table shows sample memory configurations that follow the appropriate memory guidelinesstated in this section.NOTE: Minimum supported memory is 4 GB and maximum supported memory is 32 GB.NOTE: 1R and 2R in the following table indicates single- and dual-rank DIMMs respectively.Table 1. Memory ConfigurationsSystem Capacity(in GB) DIMM Size (inGB) Number ofDIMMs DIMM Rank, Organization,and Frequency DIMM SlotPopulation4 4 1 1R, x8, 1333 MT/s, 11R, x8, 1600 MT/s8 4 2 1R, x8, 1333 MT/s, 1, 21R, x8, 1600 MT/s45