Sample Memory Configurations; Removing Memory Modules - Dell PowerEdge T20 Owner's Manual

• 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 release levers, and
then black.
• Memory modules of different sizes can be mixed only if other memory population rules are followed.
For example, 2 GB and 4 GB memory modules can be mixed.
• If memory modules with different speeds are installed, they will operate at the speed of the slowest installed
memory module(s) or slower depending on system DIMM configuration.

Sample Memory Configurations

The following table shows sample memory configurations for a single processor configuration that follow the
appropriate memory guidelines stated in this section.
NOTE: 16 GB quad-rank RDIMMs are not supported.
NOTE: Minimum supported memory is 2 GB and maximum supported memory is 32 GB.
NOTE: 1R and 2R in the following tables indicate single- and dual-rank DIMMs respectively.
Table 11. Memory Configurations
System Capacity (in DIMM Size (in GB)
GB)
2 2
4 2
8 2
16 4
32 8

Removing Memory Modules

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 or metallic contacts on the memory module.
48
Number of DIMMs DIMM Rank,
Organization, and
Frequency
1 1R, x8, 1333 MT/s,1
1R, x8, 1600 MT/s
2 1R, x8, 1333 MT/s,
1R, x8, 1600 MT/s
4 1R, x8, 1333 MT/s,
1R, x8, 1600 MT/s
4 2R, x8, 1333 MT/s,
2R, x8, 1600 MT/s
4 2R, x4, 1333 MT/s,
2R, x4, 1600 MT/s
DIMM Slot Population
1
1, 2
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4