Important – MSI X58M User Manual
Page 25

Hardware Setup
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MS-7593
2-9
Hardware Setup
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MS-7593
Important
DDR3 memory modules are not nterchangeable wth DDR2 and the DDR3 standard
DDR3 memory modules are not nterchangeable wth DDR2 and the DDR3 standard
s not backwards compatble. You should always nstall DDR3 memory modules n
the DDR3 DIMM slots.
In Trple channel/ Dual channel mode, make sure that you nstall memory modules of
the same type and densty n dfferent channel DIMM slots. If the speeds of nstalled
memeory modules are dfferent (ex. 1066 & 1333), the system wll detect and operate
the lower speed (1066) wth all nstalled memory modules.
Please always nstall the same type and densty memory modules n DIMM slots to
avod the damage of memory.
To enable successful system boot-up, always nsert the memory modules nto the
DIMM_A0 first.
Due to the chpset resource deployment, the system densty wll only be detected up
to 23+GB (not full 24GB) when each DIMM s nstalled wth a 4GB memory module.
When you nstall ncorrect memory module (the SA2-pn of the memory module con-
nects to Ground) n the DIMM_C0/C1, the LED besde DIMM_C0 wll lght red color
to remnd you. The poston of the LED s shown as below. Double confirm wth your
memory module vender for the thrd channelsupports.
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