Asus TUF SABERTOOTH 990FX R3.0 [20/142] Youmayinstall1gb 2gb 4gband8gbunbufferedandnon eccddr3dimmsintothe dimmsockets

Asus TUF SABERTOOTH 990FX R3.0 [20/142] Youmayinstall1gb 2gb 4gband8gbunbufferedandnon eccddr3dimmsintothe dimmsockets
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Chapter 1: Product Introduction
Chapter 1
• YoumayinstallvaryingmemorysizesinChannelAandChannelB.Thesystem
mapsthetotalsizeofthelower-sizedchannelforthedual-channelconguration.Any
excessmemoryfromthehigher-sizedchannelisthenmappedforsingle-channel
operation.
• 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:
a) Useamaximumof3GBsystemmemoryifyouareusinga32-bitWindows
®
OS.
b) Installa64-bitWindows
®
OSwhenyouwanttoinstall4GBormoreonthe
motherboard.
c) Formoredetails,refertotheMicrosoft
®
supportsiteathttp://support.microsoft.
com/kb/929605/en-us.
• ThedesignoftheDIMMfanmayvary.EnsurethattheDIMMfantstothe
motherboard
• AlwaysinstalltheDIMMSwiththesameCASLatency.Foranoptimumcompatibility,
werecommendthatyouinstallmemorymodulesofthesameversionordatacode
(D/C)fromthesamevendor.Checkwiththevendortogetthecorrectmemory
modules.
• HyperDIMMsupportissubjecttothephysicalcharacteristicsofindividualCPUs.Load
theX.M.P.orD.O.C.P.settingsintheBIOSforthehyperDIMMsupport.
• VisittheASUSwebsiteforthelatestQVL.
Memory configurations
Youmayinstall1GB,2GB,4GBand8GBunbufferedandnon-ECCDDR3DIMMsintothe
DIMMsockets.

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