Dell PowerEdge R210 - Manual (Page 27)

Installing the Cooling Shroud
1. Position the cooling shroud by aligning the guide slots with the guide screws on the system board. See Figure 3 -10 .
2. Push the cooling shroud down until all edges are secured to the system board.
3. Close the system. See Opening and Closing the System .
System Memory
Your system supports single and dual-rank DDR3 unbuffered ECC DIMMs (UDIMMs). DIMMs can be 1066 or 1333 MHz.
The system contains four memory sockets. Each two-socket set is organized into two 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.
l Except for memory channels that are unused, all populated memory channels must have identical configurations.
l Memory modules of different sizes can be mixed in sockets 1 to 4 (for example, 2 GB and 4 GB), but all populated channels must have identical
configurations.
l Memory modules are installed in the numeric order of the sockets beginning with 1 to 4.
l One or two DIMMs per channel can support up to 1333 Mhz.
l 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 per processor is also
supported in this mode.
Table 3 -1 shows sample memory configurations that follow the appropriate memory guidelines stated in this section. The samples show identical memory-
module configurations and their the 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.
Table 3-1. Sample UDIMM Memory Configuration
Installing Memory Modules
NOTE: Memory configurations that fail to observe these guidelines can prevent your system from starting and producing any video output.
Memory Module Size Memory Sockets
1
3
2
4
Physical Memory (GB)
1 GB X
X
X
X
X
X
X 1
2
4
2 GB X
X
X
X
X
X
X 2
4
8
4 GB X
X
X
X
X
X
X 4
8
16
WARNING: The memory modules are hot to the touch for some time after the system has been powered down. Allow time for the memory
modules to cool before handling them. Handle the memory modules by the card edges and avoid touching the components on the memory module.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.