System Memory - Dell EMC PowerEdge R740 Installation And Service Manual

Figure 55. Installing a drive into the drive carrier

System memory

System memory guidelines
The PowerEdge systems support DDR4 Registered DIMMs (RDIMMs), Load Reduced DIMMs (LRDIMMs), and Non-Volatile DIMMs
(NVDIMM-Ns). System memory holds the instructions that are executed by the processor.
Your system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-socket set is organized into six
channels. Six memory channels are allocated to each processor. In each channel, the release tabs of the first socket are marked white, and
the second socket black.
Installing and removing system components 101