Dell R820 owner manual 192 2R x4, 1333 MT/s, 2R x4, 1600 MT/s B3, B4, B5, B6 256 2R x4, 1333 MT/s

System Capacity (in	DIMM Size (in	Number of	Organization and	DIMM Slot Population
GB)	GB)	DIMMs	Speed
				B4, B5, B6, B7, B8, B9, B10,
				B11, B12
192	16	12	2R x4, 1333 MT/s	A1, A2, A3, A4, A5, A6, B1, B2,
			2R x4, 1600 MT/s	B3, B4, B5, B6
256	16	16	2R x4, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			2R x4, 1600 MT/s	B1, B2, B3, B4, B5, B6, B7, B8
384	16	24	2R x4, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			2R x4, 1600 MT/s	A9, A10, A11, A12, B1, B2, B3,
				B4, B5, B6, B7, B8, B9, B10,
				B11, B12
512	32	16	4R, x4, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
				B1, B2, B3, B4, B5, B6, B7, B8
768	32	24	4R x4, 1066 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
Table 2. Memory Configurations – Four Processor
System Capacity (in	DIMM Size (in	Number of	Organization and	DIMM Slot Population
GB)	GB)	DIMMs	Speed
8	2	4	1R x8, 1333 MT/s	A1, B1, C1, D1
			1R x8, 1600 MT/s
16	2	8	1R x8, 1333 MT/s	A1, A2, B1, B2, C1, C2, D1, D2
			1R x8, 1600 MT/s
32	2	16	1R x8, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4,
			1R x8, 1600 MT/s	C1, C2, C3, C4, D1, D2, D3, D4
64	2	32	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,
				C1, C2, C3, C4, C5, C6, C7, C8,
				D1, D2, D3, D4, D5, D6, D7, D8
64	4	16	2R x4, 1333 MT/s	A1, A2, A3, A4, B1, B2, B3, B4,
			2R x4, 1600 MT/s	C1, C2, C3, C4, D1, D2, D3, D4
96	2	48	1R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, A7, A8,
			1R x8, 1600 MT/s	A9, A10, A11, A12, B1, B2, B3,
				B4, B5, B6, B7, B8, B9, B10,
				B11, B12, C1, C2, C3, C4, C5,
				C6, C7, C8, C9, C10, C11, C12,
				D1, D2, D3, D4, D5, D6, D7, D8,
				D9, D10, D11, D12
96	8	24	2R x8, 1333 MT/s	A1, A2, A3, A4, A5, A6, B1, B2,
			2R x8, 1600 MT/s	B3, B4, B5, B6, C1, C2, C3, C4,
				C5, C6, D1, D2, D3, D4, D5, D6

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