Dell R820 owner manual Memory Configurations - Two Processor, System Capacity in

NOTE: 1R, 2R, and 4R in the following tables indicate single-, dual-, and quad-rank DIMMs.

Table 1. Memory Configurations – Two Processor

System Capacity (in	DIMM Size (in	Number of	Organization and	DIMM Slot Population
GB)	GB)	DIMMs	Speed
2	2	1	1R x8, 1333 MT/s	A1
			1R x8, 1600 MT/s
8	2	4	1R x8, 1333 MT/s	A1, A2, B1, B2
			1R x8, 1600 MT/s
16	2	8	1R x8, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4
			1R x8, 1600 MT/s
32	2	16	1R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			1R x8, 1600 MT/s	B1, B2, B3, B4, B5, B6, B7, B8
32	4	8	2R x8, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4
			2R x8, 1600 MT/s
64	4	16	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
				B1, B2, B3, B4, B5, B6, B7, B8
64	8	8	2R x4, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4
			2R x4, 1600 MT/s
96	4	24	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
				A9, A10, A11, A12, B1, B2, B3,
				B4, B5, B6, B7, B8, B9, B10,
				B11, B12
96	8	12	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, B1, B2,
			2R x8, 1600 MT/s	B3, B4, B5, B6
128	8	16	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			2R x8, 1600 MT/s	B1, B2, B3, B4, B5, B6, B7, B8
128	16	8	2R x4, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4
			2R x4, 1600 MT/s
160	8	20	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			2R x8, 1600 MT/s	A9, A11, B1, B2, B3, B4, B5,
				B6, B7, B8, B9, B11
160	16 and 8	12	2R x4, 1333 MT/s	A1, A2, A3, A4, A5, A6, B1, B2,
			2R x4, 1600 MT/s	B3, B4, B5, B6

192	8	24	2R x8, 1333 MT/s
			2R x8, 1600 MT/s

NOTE: 16 GB DIMMs must be installed in the slots numbered A1, A2, A3, A4, B1, B2, B3, and B4 and 8 GB DIMMs must be installed in slots A5, A6, B5 and B6.

A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, B1, B2, B3,

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