System Memory - Dell EMC PowerEdge R940xa Installation And Service Manual

Figure 69. 32 x 4 P Single PERC/GPU/NVMe
Figure 70. 32 x 2 P Single PERC/No-GPU/NVMe

System memory

Your system contains 48 memory sockets split into four 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 87