Asus a88xm-a/usb 3.1 [18/36] System memory

Asus a88xm-a/usb 3.1 [18/36] System memory
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Chapter 1: Product introduction
1.4 System memory
Overview
ThismotherboardcomeswithfourDoubleDataRate3(DDR3)DualInlineMemoryModule
(DIMM)sockets.ThegureillustratesthelocationoftheDDR3DIMMsockets:
Channel Sockets
ChannelA DIMM_A1&DIMM_A2
ChannelB DIMM_B1&DIMM_B2
• 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.
• 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.
• 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).
• Refertowww.asus.comforthelatestMemoryQVL(QualiedVendorsList)
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2

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