Asus TUF Z270 MARK 2 - Page 20

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Chapter 1: Product Introduction
Chapter 1
 ThedefaultmemoryoperationfrequencyisdependentonitsSerialPresenceDetect
(SPD),whichisthestandardwayofaccessinginformationfromamemorymodule.
Underthedefaultstate,somememorymodulesforoverclockingmayoperateata
lowerfrequencythanthevendor-markedvalue.
 Forsystemstability,useamoreefcientmemorycoolingsystemtosupportafull
memoryload(4DIMMs)oroverclockingcondition.
 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.
 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4GB
ormorememoryonthemotherboard,theactualusablememoryfortheOScanbe
about3GBorless.Foreffectiveuseofmemory,werecommendthatyoudoanyof
thefollowing:
 a) Useamaximumof3GB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.
Memory configurations
Youmayinstall4GB,8GB,and16GBunbufferedandnon-ECCDDR4DIMMsintothe
DIMMsockets.