Dell PowerEdge VRTX - Manual (Page 56)

The system contains 48 memory sockets split into four sets of 12 sockets, one set per processor. Each
12-socket set is organized into four channels. In each channel, the release levers of the first socket are
marked white, the second socket black, and the third socket green.
NOTE: DIMMs in sockets A1 to A12 are assigned to processor 1, B1 to B12 to processor 2, C1 to C12
to processor 3, and D1 to D12 to processor 4.
Figure 22. Memory Socket Locations
Memory channels are organized as follows:
Processor 1 channel 0: memory sockets A1, A5, and A9
channel 1: memory sockets A2, A6, and A10
channel 2: memory sockets A3, A7, and A11
channel 3: memory sockets A4, A8, and A12
Processor 2 channel 0: memory sockets B1, B5, and B9
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