Dell R820 Memory channels are organized as follows, Memory Socket Locations on the PEM

Figure 16. Memory Socket Locations on the PEM

Memory channels are organized as follows:

Processor 1	channel 0: slots A1, A5, and A9
	channel 1: slots A2, A6, and A10
	channel 2: slots A3, A7, and A11
	channel 3: slots A4, A8, and A12
Processor 2	channel 0: slots B1, B5, and B9
	channel 1: slots B2, B6, and B10
	channel 2: slots B3, B7, and B11
	channel 3: slots B4, B8, and B12
Processor 3	channel 0: slots C1, C5, and C9
	channel 1: slots C2, C6, and C10
	channel 2: slots C3, C7, and C11
	channel 3: slots C4, C8, andC12
Processor 4	channel 0: slots D1, D5, and D9
	channel 1: slots D2, D6, and D10
	channel 2: slots D3, D7, and D11

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