Gigabyte R283-Z90-AAD1, User Manual

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System Hardware Installation
3-6-4 Memory Population Table
EPYC Memory Speed based on DIMM Population (One DIMM per Channel)
DIMM
Type
DIMM Population
Max EPYC 9004
DDR5 Frequency (MT/s)
DIMM 0
RDIMM
1R (1 Rank) 4800
2R (2 Ranks) 4800
3DS RDIMM
2S2R (4 Ranks) 4800
2S4R (8 Ranks) 4800
2S8Rx4 (16 ranks) 4800
EPYC Memory Speed based on DIMM Population (Two DIMM per Channel)
14-layer 93mil high-Dk PCB stackup
DIMM
Type
DIMM Population
Max EPYC 9004
DDR5 Frequency (MT/s)
DIMM 0 DIMM 1
RDIMM
-- 1R 4800
1R 1R 4000
-- 2R 4400
1R 2R 3600
2R 2R 3600
3DS
-- 2S2R (4 Ranks) 4400
-- 2S4R (8 Ranks) 4400
-- 2S8R (16 Ranks) 4400
2S2R (4 Ranks) 2S2R (4 Ranks) 3600
2S4R (8 Ranks) 2S4R (8 Ranks) 3600
2S8Rx4 (16
Ranks)
2S8Rx4 (16 Ranks) 3600