Dell PowerEdge C8000 - Manual (Page 289)

Installing System Components 289
Supported DIMM Configuration
For the sequence of the 16 DIMM sockets, see Figure 3-100. When you insert
the DIMM(s), always start with DIMM_A1. For single processor
configurations, the optimized memory module installation sequence is
A1/A2/A3/A4/A5/A6/A7/A8. See Table 3-2 for dual processor configurations.
Figure 3-100. Memory Slot Locations
1 DIMM_A3 2 DIMM_A7
3 DIMM_A4 4 DIMM_A8
5 DIMM_B1 6 DIMM_B5
7 DIMM_B2 8 DIMM_B6
9 DIMM_B8 10 DIMM_B4
11 DIMM_B7 12 DIMM_B3
13 DIMM_A6 14 DIMM_ A2
15 DIMM_A5 16 DIMM_A1
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
CPU1
CPU2