MSI X99A SLI PLUS Manual page 29

Suggestions for Multi-Channel mode population rule
Installed DIMMs
(2 memory modules)
DIMM1, DIMM5
Installed DIMMs
(3 memory modules)
DIMM1, DIMM3, DIMM5
Installed DIMMs
(4 memory modules)
DIMM1, DIMM3,
DIMM5, DIMM7
Dual-Channel mode
Diagram
Triple-Channel mode
Diagram
Quad-Channel mode
Diagram
En-15
DIMM1
DIMM2
DIMM3
DIMM4
DIMM8
DIMM7
DIMM6
DIMM5
DIMM1
DIMM2
DIMM3
DIMM4
DIMM8
DIMM7
DIMM6
DIMM5
DIMM1
DIMM2
DIMM3
DIMM4
DIMM8
DIMM7
DIMM6
DIMM5