User's Manual

1-8
Chapter 1: Product introduction
1.4.2 Memory configurations
Youmayinstall1GB,2GB,4GB,and8GBunbufferednon-ECCDDR3DIMMsintotheDIMM
sockets.
• AlwaysinstallDIMMswiththesameCASlatency.Foroptimalcompatibility,we
recommendthatyouinstallmemorymodulesofthesameversionordatecode(D/C)
fromthesamevendor.Checkwiththeretailertogetthecorrectmemorymodules.
• Duetothememoryaddresslimitationon32-bitWindows
®
OS,whenyouinstall4GB
ormorememoryonthemotherboard,theactualusablememoryfortheOScanbe
about3GBorless.Foreffectiveuseofmemory,werecommendthatyoudoanyofthe
following:
- Useamaximumof3GBsystemmemoryifyouareusinga32-bitWindows
®
OS.
 - Installa64-bitWindows
®
OSifyouwanttoinstall4GBormoreonthe
motherboard.
 - Formoredetails,refertotheMicrosoft
®
support site at http://support.microsoft.
com/kb/929605/en-us.
• ThismotherboarddoesnotsupportDIMMsmadeupof512Mb(64MB)chipsorless.
1.4 System memory
1.4.1 Overview
ThismotherboardcomeswithtwoDoubleDataRate3(DDR3)SingleInlineMemoryModules
(DIMM)sockets.
ADDR3modulehasthesamephysicaldimensionsasaDDR2DIMMbutisnotched
differentlytopreventinstallationonaDDR2DIMMsocket.DDR3modulesaredevelopedfor
better performance with less power consumption.
ThegureillustratesthelocationoftheDDR3DIMMsockets:
Channel Sockets
ChannelA DIMM_A1andDIMM_A2
AM1M-E
AM1M-E 240-pin DDR3 DIMM sockets
DIMM_A1 DIMM_A2
Whenusingonlyonememorymodule,installitintoslotDIMM_A2.