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3-7-4 DIMM Population Table
EPYC Memory Speed based on DIMM Population (One DIMM per Channel)
EPYC Memory Speed based on DIMM Population (One DIMM per Channel)
EPYC Memory Speed based on DIMM Population (One DIMM per Channel)
EPYC Memory Speed based on DIMM Population (Two DIMM per Channel)
DIMM
EPYC Memory Speed based on DIMM Population (Two DIMM per Channel)
EPYC Memory Speed based on DIMM Population (Two DIMM per Channel)
Type
RDIMM
LRDIMM
NOTE!
l 1R: 1 package rank of SDP DRAMs
l 2R: 2 package rank of SDP DRAMs
l 2DR: 2 package rank of DDP DRAMs
l 4DR: 4 package rank of DDP DRAMs
l 2S2R/2S4R/2S8R: 2 package rank of 2/4/8 high 3DS DRAMs
l DIMM must be populated in sequential alphabetic order,
starting with bank A.
l When only one DIMM is used, it must be populated in memory slot A1.
System Hardware Installation
DIMM Population
DIMM
Type
DIMM Population
DIMM
Type
RDIMM
2R or 2DR (2 Ranks)
RDIMM
2R or 2DR (2 Ranks)
LRDIMM
LRDIMM
3DS
3DS
DIMM Population
DIMM 0
DIMM Population
DIMM
--
Type
DIMM 0
1R
--
--
1R
1R
--
RDIMM
2R or 2DR
1R
--
2R or 2DR
4DR
--
--
4DR
--
--
2S2R (4 Ranks)
LRDIMM
--
2S4R (8 Ranks)
2S2R (4 Ranks)
--
2S4R (8 Ranks)
2S2R (4 Ranks)
3DS
--
--
2S4R (8 Ranks)
2S2R (4 Ranks)
3DS
--
2S4R (8 Ranks)
DIMM 0
1R (1 Rank)
DIMM 0
1R (1 Rank)
4DR (4 Ranks)
2S2R (4 Ranks)
4DR (4 Ranks)
2S4R (8 Ranks)
2S2R (4 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
2S4R (8 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
DIMM 1
1R
DIMM 1
1R
1R
2R or 2DR
1R
2R or 2DR
2R or 2DR
2R or 2DR
2R or 2DR
4DR
2R or 2DR
4DR
4DR
2S2R (4 Ranks)
4DR
2S4R (8 Ranks)
2S2R (4 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
2S4R (8 Ranks)
2S2R (4 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
2S2R (4 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
2S2R (4 Ranks)
2S4R (8 Ranks)
2S4R (8 Ranks)
2S4R (8 Ranks)
- 49 -
- 49 -
- 34 -
Max EPYC 7003
DDR Frequency (MHz)
Max EPYC 7003
3200
DDR Frequency (MHz)
3200
3200
3200
3200
3200
3200
3200
3200
3200
3200
3200
3200
3200
Max EPYC 7003
DDR Frequency (MHz)
Max EPYC 7003
3200
DDR Frequency (MHz)
2933
3200
3200
2933
2933
3200
2933
2933
3200
2933
2933
3200
3200
2933
3200
3200
2933
3200
2933
2933
2933
2933
2666
2933
2933
2666
2666
2933
2666
Motherboard Components
Motherboard Components
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