Asus B85-PRO Specifications download pdf (Page 15)

ASUS B85-PRO GAMER

1-7

1.4 System memory

1.4.1 Overview

ThismotherboardcomeswithfourDoubleDataRate3(DDR3)DualInlineMemoryModule

(DIMM)sockets.ADDR3moduleisnotcheddifferentlyfromaDDRorDDR2module.DO

NOTinstallaDDRorDDR2memorymoduletotheDDR3slot.

AccordingtoIntel

CPUspec,DIMMvoltagebelow1.65Visrecommendedtoprotectthe

CPU.

1.4.2 Memory configurations

Youmayinstall1GB,2GB,4GB,and8GBunbufferednon-ECCDDR3DIMMsintothe

DIMMsockets.Youcanrefertotherecommendedmemorypopulationbelow.

• 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Intel

chipsetlimitation,DDR31600MHzandhighermemorymodulesonXMP

modewillrunatthemaximumtransferrateofDDR31600MHz.

• 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3GB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.

• ThismotherboarddoesnotsupportDIMMsmadeupof512Mb(64MB)chipsorless.

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Asus B85-PRO Specifications Page 15