MSI X58M User Guide - Page 25

the DDR3 DIMM slots., DIMM_A0 first. - chipset

Page 25 highlights

MS-7593 Important • DDR3 memory modules are not interchangeable with DDR2 and the DDR3 standard DDR3 memory modules are not interchangeable with DDR2 and the DDR3 standard is not backwards compatible. You should always install DDR3 memory modules in the DDR3 DIMM slots. • In Triple channel/ Dual channel mode, make sure that you install memory modules of the same type and density in different channel DIMM slots. If the speeds of installed memeory modules are different (ex. 1066 & 1333), the system will detect and operate the lower speed (1066) with all installed memory modules. • Please always install the same type and density memory modules in DIMM slots to avoid the damage of memory. • To enable successful system boot-up, always insert the memory modules into the DIMM_A0 first. • Due to the chipset resource deployment, the system density will only be detected up to 23+GB (not full 24GB) when each DIMM is installed with a 4GB memory module. • When you install incorrect memory module (the SA2-pin of the memory module connects to Ground) in the DIMM_C0/C1, the LED beside DIMM_C0 will light red color to remind you. The position of the LED is shown as below. Double confirm with your memory module vender for the third channelsupports. 2-

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MS-7593
Important
DDR3 memory modules are not ±nterchangeable w±th DDR2 and the DDR3 standard
DDR3 memory modules are not ±nterchangeable w±th DDR2 and the DDR3 standard
±s not backwards compat±ble. You should always ±nstall DDR3 memory modules ±n
the DDR3 DIMM slots.
In Tr±ple channel/ Dual channel mode, make sure that you ±nstall memory modules of
the same type and dens±ty ±n d±fferent channel DIMM slots. If the speeds of ±nstalled
memeory modules are d±fferent (ex. 1066 & 1333), the system w±ll detect and operate
the lower speed (1066) w±th all ±nstalled memory modules.
Please always ±nstall the same type and dens±ty memory modules ±n DIMM slots to
avo±d the damage of memory.
To enable successful system boot-up, always ±nsert the memory modules ±nto the
DIMM_A0 first.
Due to the ch±pset resource deployment, the system dens±ty w±ll only be detected up
to 23+GB (not full 24GB) when each DIMM ±s ±nstalled w±th a 4GB memory module.
When you ±nstall ±ncorrect memory module (the SA2-p±n of the memory module con-
nects to Ground) ±n the DIMM_C0/C1, the LED bes±de DIMM_C0 w±ll l±ght red color
to rem±nd you. The pos±t±on of the LED ±s shown as below. Double confirm w±th your
memory module vender for the th±rd channelsupports.