Asus B85M-E/CSM Specifications Page 1

MotherboardB85M-EB85M-E/CSM

1-2Chapter 1: Product introductionB85M-EPlace this side towards the rear of the chassis1.2.3 Motherboard layoutB85M-EPCIEX16_1PCIEX16_2PCIEX1_1PCI1F_

ASUS B85M-E1-31.2.4 Layout contentsConnectors/Jumpers/Slots/LED Page1. Serialportconnectors(10-1pinCOM) 1-162. ATXpowerconnectors(24-pinEAT

1-4Chapter 1: Product introduction1.3.1 Installing the CPU123ABUnplugallpowercablesbeforeinstallingtheCPU.• Uponpurchaseofthemotherboard,

ASUS B85M-E1-5ABC541.3.2 CPU heatsink and fan assembly installationApplytheThermalInterfaceMaterialtotheCPUheatsinkandCPUbefore you instal

1-6Chapter 1: Product introduction3 4ABBATo uninstall the CPU heatsink and fan assembly21To install the CPU heatsink and fan assembly2BAAB1

ASUS B85M-E1-71.4 System memory1.4.1 OverviewThismotherboardcomeswithfourDoubleDataRate3(DDR3)DualInlineMemoryModule(DIMM)sockets.AD

1-8Chapter 1: Product introduction• ThedefaultmemoryoperationfrequencyisdependentonitsSerialPresenceDetect(SPD),whichisthestandardwa

ASUS B85M-E1-92. RemovetheDIMMfromthesocket.SupporttheDIMMlightlywithyourngerswhenpressingtheretainingclips.TheDIMMmightgetdama

1-10Chapter 1: Product introduction1.5.3 PCI slotThePCIslotssupportLANcards,SCSIcards,USBcards,andothercardsthatcomplywithPCIspecic

ASUS B85M-E1-11• Ifthestepsabovedonothelp,removetheonboardbatteryandshortthetwopinsagaintocleartheCMOSRTCRAMdata.Aftercleari

iiE9915Revised Edition v3November 2014Copyright © 2014 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and so

1-12Chapter 1: Product introductionRefertotheaudiocongurationtableforthefunctionoftheaudioportsin2.1,4.1,5.1,or7.1-channelcongura

ASUS B85M-E1-131.7.2 Internal connectors1. LPT connector (26-1 pin LPT)TheLPT(LinePrintingTerminal)connectorsupportsdevicessuchasaprinter

1-14Chapter 1: Product introduction3. Front panel audio connector (10-1 pin AAFP)Thisconnectorisforachassis-mountedfrontpanelaudioI/Omodule

ASUS B85M-E1-156. Speaker connector (4-pin SPEAKER)The4-pinconnectorisforthechassis-mountedsystemwarningspeaker.Thespeakerallows you hear

1-16Chapter 1: Product introduction7. Serial port connector (10-1 pin COM)Thisconnectorisforaserial(COM)port.Connecttheserialportmodulec

ASUS B85M-E1-179. System panel connector (10-1 pin PANEL)Thisconnectorsupportsseveralchassis-mountedfunctions.• SystempowerLED(2-pinPWR_LED

1-18Chapter 1: Product introduction11. USB 3.0 connector (20-1 pin USB3_12)ThisconnectorallowsyoutoconnectaUSB3.0moduleforadditionalUSB3

ASUS B85M-E1-1913. Chassis intrusion connector (4-1 pin CHASSIS)Thisconnectorisforachassis-mountedintrusiondetectionsensororswitch.Connect

1-20Chapter 1: Product introduction1.9 Software support1.9.1 Installing an operating systemThismotherboardsupportsWindows®7(32bit/64bit)andWi

ASUS B85M-E1-211.9.3 Intel® SBA support Intel®SBA(SmallBusinessAdvantage)isacombinationofhardwareandsoftwarethatprovidesuniquesecurity

iiiContentsSafety information ... ivAbout this guide ...

ASUS B85M-E2-12.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the

2-2Chapter 2: Getting started2.1.2 ASUS EZ Flash 2The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS‑based utility.Before

ASUS B85M-E2‑32.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it f

2-4Chapter 2: Getting startedBooting the system in DOS environmentTo boot the system in DOS:1. Insert the USB ash drive with the latest BIOS le and

ASUS B85M-E2-5ASUSTeK BIOS Updater for DOS V1.30 [2014/01/01]Current ROMBOARD: B85M-EVER: 0306 (H :00 B :00)DATE: 08/08/2014Update ROMBOARD: UnknownVE

2-6Chapter 2: Getting started2.2 BIOS setup programUse the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include

ASUS B85M-E2-7• The boot device options vary depending on the devices you installed to the system.• The Boot Menu(F8) button is available only when

2‑8Chapter 2: Getting startedMenu barThe menu bar on top of the screen has the following main items:Main For changing the basic system congurationAi

ASUS B85M-E2-9Pop-up windowSelect a menu item and press <Enter> to display a pop‑up window with the conguration options for that item.Scroll ba

2-10Chapter 2: Getting started2.4 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu pro

ivSafety informationElectrical safety• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating th

ASUS B85M-E2-11Administrator PasswordIf you have set an administrator password, we recommend that you enter the administrator password for accessing t

2-12Chapter 2: Getting started2.5 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking‑related items.Be cautious when changing

ASUS B85M-E2‑13Target CPU Turbo-Mode Speed : xxxxMHzDisplays the target CPU Turbo‑Mode speed.Target DRAM Speed : xxxxMHzDisplays the target DRAM speed

2-14Chapter 2: Getting started2.5.4 Max. CPU Cache Ratio [Auto]Allows you to set the uncore ratio of the processor to its possible maximum value. The

ASUS B85M-E2-15DRAM RAS# PRE Time [Auto]Conguration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock]DRAM RAS# ACT Time [Auto]Conguration options: [A

2-16Chapter 2: Getting startedDRAM RTL (CHB_R1D1) [Auto]Conguration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock]DRAM IO-L (CHA_R0D0) [Auto]Congu

ASUS B85M-E2-17tRDWR_dr [Auto]Conguration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock]tRDWR_dd [Auto]Conguration options: [Auto] [1 DRAM Clock]

2‑18Chapter 2: Getting started2.5.11 CPU Power ManagementThe subitems in this menu allow you to set the CPU ratio and features.Enhanced Intel® SpeedS

ASUS B85M-E2-19CPU Internal Power ConfigurationCPU Integrated VR Efficiency Management [Auto]Allows you to manage the CPU integrated VR efciency. Con

2-20Chapter 2: Getting startedOffset Mode Sign [+]This item appears only when you set the CPU Core Voltage to [Offset Mode] and allows you to set the

vWhere to find more informationRefer to the following sources for additional information and for product and software updates.1. ASUS websitesThe ASU

ASUS B85M-E2-21Total Adaptive Mode CPU Graphics Voltage [Auto]This item appears only when you set the CPU Graphics Voltage to [Adaptive Mode] and allo

2-22Chapter 2: Getting started2.5.21 DRAM CTRL REF Voltage [Auto]Allows you to set the DRAM CTRL REF Voltage. The values range from 0.3950V to 0.6300

ASUS B85M-E2‑232.6 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other system devices.Be cautious when changi

2-24Chapter 2: Getting startedLimit CPUID Maximum [Disabled][Enabled] Allows legacy operating systems to boot even without support for CPUs with exte

ASUS B85M-E2-25The following items appear only when you set the CPU C states to [Enabled].Enhanced C1 state [Enabled][Enabled] Enables enhanced C1 st

2-26Chapter 2: Getting startedEntry on S3 RTC Wake [Enabled]The system automatically wakes up and set to Rapid Start Technology S4 mode.Conguration o

ASUS B85M-E2-27S.M.A.R.T. Status Check [Enabled]S.M.A.R.T. (Self‑Monitoring, Analysis and Reporting Technology) is a monitor system. When read/write o

2‑28Chapter 2: Getting startedNB PCIe ConfigurationAllows you to congure the NB PCI Express settings.PCIEX16_1 Link Speed [Auto]Allows you to congur

ASUS B85M-E2-29The USB Devices item shows the auto‑detected values. If no USB device is detected, the item shows None.Legacy USB Support [Enabled][Ena

2‑30Chapter 2: Getting started2.6.8 Onboard Devices ConfigurationHD Audio Controller [Enabled][Enabled] Enables the HD Audio Device.[Disabled] Disa

viB85M-E specifications summary(continued on the next page)CPU LGA1150 socket for Intel® 4th Generation CoreTM i7/ i5 / i3, Pentium®, Celeron® Process

ASUS B85M-E2‑31Device Mode [STD Printe...]Allows you to select the Printer Port mode. Conguration options: [STD Printer Mode] [SPP Mode] [EPP‑1.9 and

2‑32Chapter 2: Getting started2.6.10 Network StackNetwork Stack [Disabled]This item allows user to disable or enable the UEFI network stack. Congura

ASUS B85M-E2‑332.7.1 CPU Temperature [xxxºC/xxxºF]The onboard hardware monitor automatically detects and displays the CPU temperature. Select Ignore

2‑34Chapter 2: Getting startedCPU Lower Temperature [20]Displays the lower limit of the CPU temperature.CPU Fan Min. Duty Cycle(%) [20]Use the <+&g

ASUS B85M-E2‑352.8 Boot menuThe Boot menu items allow you to change the system boot options.Scroll down to display the following items:2.8.1 Fast Bo

2‑36Chapter 2: Getting startedUSB Support [Partial Initialization][Disabled] All USB devices will not be available until OS boot up for a fastest

ASUS B85M-E2‑37Post Report [5 sec]This item appears only when you set Boot Logo Display to [Disabled]. This item allows you to select a desired post r

2‑38Chapter 2: Getting startedBoot from Network Devices [Legacy OpROM first]Allows you to select the type of network devices that you want to launch.

ASUS B85M-E2‑39Load PK from FileAllows you to load the downloaded PK from a USB storage device.The PK le must be formatted as a UEFI variable structu

2-40Chapter 2: Getting startedAppend DBX from fileAllows you to load the additional DBX from a storage device so that more db’s images cannot be loade

viiB85M-E specifications summaryLANRealtek 8111F Gigabit LAN controllerAudio 8-channel Realtek® ALC887-VD2 High Denition Audio CODEC- Supports multi

ASUS B85M-E2-412.9 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter> to dis

2-42Chapter 2: Getting started2.10 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard

B85M-EA-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the f

A-2AppendicesREACHComplying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published

B85M-EA-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894-3447Fax

A-4AppendicesDECLARATION OF CONFORMITYPer FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corpora

viiiB85M-E specifications summaryInternal connectors/ switches/ buttons1 x USB 3.0 connector supports additional 2 USB 3.0 ports2 x USB 2.0 connectors

ASUS B85M-E1-1Product introduction11.1 Before you proceedTake note of the following precautions before you install motherboard components or change a