General Memory Module Installation Guidelines - Dell EMC PowerEdge R240 Installation And Service Manual

Figure 35. Memory socket locations
Memory channels are organized as follows:
Table 3. Memory channels
Memory socket locations on the system board
Processor 1
Table 4. Memory population
DIMM Type DIMMs
Populated/
Channel
UDIMM

General memory module installation guidelines

To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory.
If your system's memory configurations fail to observe these guidelines, your system might not boot, stop responding during
memory configuration, or operate with reduced memory.
The memory bus may operate at frequency can be 2666 MT/s, 2400 MT/s, or 2133 MT/s depending on the following factors:
Channel 0: Memory slots A1 and A3
Voltage
1
1.2 V
2
Channel 1: Memory slots A2 and A4
Operating Frequency (in
MT/s)
2666
Installing and removing system components
Maximum DIMM Rank/
Channel
Dual rank or Single rank
41