MSI X299M-A PRO User Manual - Page 29

DIMM Slots, Memory module installation recommendation

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DIMM Slots DIMMA2 DIMMB2 Channel A Channel B DIMMA1 Memory module installation recommendation DIMMB1 DIMMA1 DIMMB1 DIMMA1 DIMMB1 DIMMB2 DIMMA1 DIMMA2 Important y To ensure system stability for Dual channel mode, memory modules must be of the same type, number and density. And for every channel, the odd number DIMM slot must to be installed first. y Due to chipset resource usage, the available capacity of memory will be a little less than the amount of installed. y Based on Intel CPU specification, the Memory DIMM voltage below 1.35V is suggested to protect the CPU. y Please note that the maximum capacity of addressable memory is 4GB or less for 32-bit Windows OS due to the memory address limitation. Therefore, we recommended that you to install 64-bit Windows OS if you want to install more than 4GB memory on the motherboard. y Some memory may operate at a lower frequency than the marked value when overclocking due to the memory frequency operates dependent on its Serial Presence Detect (SPD). y It is recommended to use a more efficient memory cooling system for full DIMMs installation or overclocking. y The stability and compatibility of installed memory modules depend on installed CPU and devices when overclocking. Overview of Components 29

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29
Overview of Components
DIMM Slots
Important
y
To ensure system stability for Dual channel mode, memory modules must be of the
same type, number and density. And for every channel, the odd number DIMM slot
must to be installed first.
y
Due to chipset resource usage, the available capacity of memory will be a little less
than the amount of installed.
y
Based on Intel CPU specification, the Memory DIMM voltage below 1.35V is
suggested to protect the CPU.
y
Please note that the maximum capacity of addressable memory is 4GB or less
for 32-bit Windows OS due to the memory address limitation. Therefore, we
recommended that you to install 64-bit Windows OS if you want to install more than
4GB memory on the motherboard.
y
Some memory may operate at a lower frequency than the marked value when
overclocking due to the memory frequency operates dependent on its Serial Presence
Detect (SPD).
y
It is recommended to use a more efficient memory cooling system for full DIMMs
installation or overclocking.
y
The stability and compatibility of installed memory modules depend on installed CPU
and devices when overclocking.
Memory module installation recommendation
DIMMB1
DIMMB1
DIMMB2
DIMMA1
DIMMA1
DIMMA1
DIMMA2
DIMMA2
DIMMB2
Channel A
Channel B
DIMMA1
DIMMB1