MSI Z77A-GD55 - Manual (Page 26)

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Gettng Started
Memory
These DIMM slots are used for nstallng memory modules. For more nformaton on
compatble components, please vst http://www.ms.com/servce/test-report
DDR3
240-pn, 1.5V
48x2=96 pn 72x2=144 pn
Dual-Channel mode Populaton Rule
In Dual-Channel mode, the memory modules can transmt and receve data wth two
data bus channels smultaneously. Enablng Dual-Channel mode can enhance system
performance. The followng llustratons explan the populaton rules for Dual-Channel
mode.
1
DIMM1
DIMM2
DIMM3
DIMM4
2
DIMM1
DIMM2
DIMM3
DIMM4
Important
DDR3 memory modules are not nterchangeable wth DDR2, and the DDR3 standard
s not backward compatble. Always nstall DDR3 memory modules n DDR3 DIMM
slots.
To ensure system stablty, memory modules must be of the same type and densty
n Dual-Channel mode.
Due to chpset resource usage, the system wll only detect up to 31+ GB of memory
(not full 32 GB) when all DIMM slots have 8GB memory modules nstalled.
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