Dell PowerEdge R830 Owner's Manual page 76

Figure 29. Memory socket locations on the processor expansion module
Memory channels are organized as follows:
Table 28. Memory channels
Processor Channel 0
Processor 1 Slots A1, A5, and A9
Processor Slots B1, B5, and B9
2
Processor Slots C1, C5, and C9
3
Processor Slots D1, D5, and D9
4
The following table shows the memory populations and operating frequencies for the supported configurations:
Table 29. Memory population
DIMM Type DIMMs Populated/
Channel
RDIMM 1
2
76
Channel 1
Slots A2, A6, and A10
Slots B2, B6, and B10
Slots C2, C6, and C10
Slots D2, D6, and D10
Voltage
1.2 V
Channel 2
Slots A3, A7, and A11
Slots B3, B7, and B11
Slots C3, C7, and C11
Slots D3, D7, and D11
Operating Frequency (in
MT/s)
2400, 2133, 1866
2400, 2133, 1866
Channel 3
Slots A4, A8, and A12
Slots B4, B8, and B12
Slots C4, C8, and C12
Slots D4, D8, and D12
Maximum DIMM Rank/
Channel
Dual rank or single rank
Dual rank or single rank