Dell PowerEdge R310 User Manual download pdf (Page 106)

106 Installing System Components

System Memory

Your system supports DDR3 unbuffered ECC DIMMs (UDIMMs) and

registered ECC DIMMs (RDIMMs). DIMMs can be 1066 or 1333 MHz.

The system contains six memory sockets organized into two DDR3 channels.

The first socket of each channel is marked with white release levers.

General Memory Module Installation Guidelines

To ensure optimal performance of your system, observe the following general

guidelines when configuring your system memory.

NOTE: Memory configurations that fail to observe these guidelines can prevent

your system from starting and producing any video output.

• Except for memory channels that are unused, all populated memory

channels must have identical configurations.

• Memory modules of different sizes can be mixed in sockets 1 to 6

(for example, 2 GB and 4 GB), but all populated channels must have

identical configurations.

• Memory modules are installed in the numeric order of the sockets

beginning with 1 to 6.

• If memory modules with different speeds are installed, they will operate at

the speed of the slowest installed memory module(s).

Mode-Specific Guidelines

Your system supports both single-channel and dual-channel modes. A

minimal single-channel configuration of one 1 GB memory module is also

supported in this mode.

Table 3-2 shows sample memory configurations that follow the appropriate

memory guidelines stated in this section. The samples show identical

memory-module configurations and their physical and available memory

totals. The table does not show mixed- or quad-rank memory-module

configurations, nor does it address the memory speed considerations of any

configuration.

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Dell PowerEdge R310 User Manual Page 106