MSI Z97 GAMING 9 AC Manual - Manual (Page 29)

Chapter 1
1-15 Getting Started
Memory
These DIMM slots are used for installing memory modules.
DIMM1
DIMM2
DIMM3
DIMM4
Video Demonstration
Watch the video to learn how to install memories.
http://youtu.be/76yLtJaKlCQ
Dual-Channel mode Population Rule
In Dual-Channel mode, the memory modules can transmit and receive data with two
data bus channels simultaneously. Enabling Dual-Channel mode can enhance system
performance. The following illustrations explain the population rules for Dual-Channel
mode.
DIMM2
DIMM4
DIMM1
DIMM2
DIMM3
DIMM4
Important
DDR3 memory modules are not interchangeable with DDR2, and the DDR3
standard is not backward compatible. Always install DDR3 memory modules in
DDR3 DIMM slots.
To ensure system stability, memory modules must be of the same type and density
in Dual-Channel mode.
Due to chipset resource usage, the system will only detect up to 31+ GB of memory
(not full 32 GB) when all DIMM slots have 8GB memory modules installed.
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