2-7
MS-7681
Chapter 2 
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 lnes smultaneously. Enablng Dual-Channel mode can enhance the 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 backwards compatble. You should always nstall DDR3 memory modules n 
the DDR3 DIMM slots.
In Dual-Channel mode, make sure that you nstall memory modules of the 
same type 
and densty n derent channel DIMM slots.
To ensure a successful system boot-up, always nsert the memory modules nto the 
DIMM1 rst.
Due to the chpset resource deployment, the system densty wll only be detected up 
to 31+GB (not full 32GB) when each DIMM s nstalled wth a 8GB memory module.
•
•
•
•
Installed
Empty