Dell PowerEdge R430 Owner's Manual

Memory bus operating frequency can be 2400 MT/s, 2133 MT/s, or 1866 MT/s depending on the following factors:

• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)
• Maximum supported DIMM frequency of the processors

The system contains 12 memory sockets split into four sets — two sets of 4 sockets and two sets of 2 sockets each. Each 4-socket set is organized into two channels and each 2–socket set is organized into one channel. In each channel of the 4-socket set, the release levers of the first socket are marked white and the second socket black. In the 2-socket set, each release lever is marked white.

Memory channels are organized as follows:

Processor 1

channel 0: memory sockets A1 and A5

channel 1: memory sockets A2 and A6

channel 2: memory sockets A3 and A7

channel 3: memory sockets A4 and A8

Processor 2

channel 0: memory sockets B1

channel 1: memory sockets B2

channel 2: memory sockets B3

channel 3: memory sockets B4

The following table shows the memory populations and operating frequencies for the supported configurations.