Asus H81M2 User Manual

MotherboardH81M2

1-2Chapter 1: Product introductionPlace this side towards the rear of the chassisH81M21.2.3 Motherboard layoutH81M2PCIEX16PCIEX1_1PCI1PCI2RTL8111GCOM

ASUS H81M21-31.2.4 Layout contents1.3 Central Processing Unit (CPU)This motherboard comes with a surface mount LGA1150 socket designed for the Intel

1-4Chapter 1: Product introduction1.3.1 Installing the CPU123ABUnplug all power cables before installing the CPU.• Ensure that you install the corre

ASUS H81M21-5ABC541.3.2 CPU heatsink and fan assembly installationApply the Thermal Interface Material to the CPU heatsink and CPU before you install

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

ASUS H81M21-71.4 System memory1.4.1 OverviewThis motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. A DD

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

ASUS H81M21-92. Remove the DIMM from the socket.Support the DIMM lightly with your ngers when pressing the retaining clips. The DIMM might get damag

1-10Chapter 1: Product introduction1.5.3 PCI Express 2.0 x1 slotsThis motherboard supports PCI Express x1 network cards, SCSI cards, and other cards

ASUS H81M21-112. Keyboard and USB device wake-up (KB_USBPWB)This jumper allows you to enable or disable the P/S 2 device wake-up feature. When you se

iiE8588First Edition V1August 2013Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and softwa

1-12Chapter 1: Product introduction1.7 Connectors1.7.1 Rear panel connectorsLAN portSpeed LEDActivity Link LED1. PS/2 mouse port (green). This port

ASUS H81M21-134. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.5. Line Out port (lime). This por

1-14Chapter 1: Product introduction• For a fully congured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12V Spec

ASUS H81M21-153. Front panel audio connector (10-1 pin AAFP)This connector is for a chassis-mounted front panel audio I/O module that supports either

1-16Chapter 1: Product introduction6. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) Connect the fan cables to the fan connectors on

ASUS H81M21-177. USB 2.0 connectors (10-1 pin USB910, USB1112)These connectors are for USB 2.0 ports. Connect the USB module cable to any of these co

1-18Chapter 1: Product introduction9. System panel connector (10-1 pin F_PANEL)This connector supports several chassis-mounted functions.• System po

ASUS H81M21-1911. USB 3.0 connector (20-1 pin USB3_E12)This connector is for additional USB 3.0 ports. Connect the USB 3.0 bracket cable to this conn

1-20Chapter 1: Product introduction1.8 Onboard LEDs1. Standby Power LEDThe motherboard comes with a standby power LED that lights up to indicate tha

ASUS H81M21-211.9 Software support1.9.1 Installing an operating systemThis motherboard supports Windows® 7 (32bit/64bit) and Windows® 8 (32bit/64bit

iiiContentsSafety information ... ivAbout this guide ...

ASUS H81M22-12.1 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 B

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 H81M22-32.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it fa

2-4Chapter 2: Getting startedBooting the system to a DOS environment1. Insert the DOS-bootable USB ash drive with the latest BIOS le and BIOS Updat

ASUS H81M22-53. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <Enter

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 H81M22-7• The boot device options vary depending on the devices you installed to the system.• The Boot Menu(F8) button is available only when t

2-8Chapter 2: Getting startedNavigation keysGeneral helpMenu barSubmenu itemConguration eldsMenu itemsBack buttonPop-up windowScroll barMenu itemsTh

ASUS H81M22-9Submenu itemsA greater than sign (>) before each item on any menu screen means that the item has a submenu. To display the submenu, se

2-10Chapter 2: Getting startedAdding items to My FavoritesTo add frequently-used BIOS items to My Favorites:1. Use the arrow keys to select an item t

ivSafety informationElectrical safetyTo prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the s

ASUS H81M22-112.4 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an ove

2-12Chapter 2: Getting started3. Conrm the password when prompted.To change an administrator password:1. Select the Administrator Password item and

ASUS H81M22-132.5 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing the settings of

2-14Chapter 2: Getting started2.5.1 ASUS MultiCore Enhancement [Auto][Auto] Default set to [Auto] for maximum performance under XMP/Manual/User-den

ASUS H81M22-152.5.5 BCLK Frequency : DRAM Frequency Ratio [Auto]Allows you to set the BCLK frequency to DRAM frequency ratio.[Auto] DRAM frequency i

2-16Chapter 2: Getting startedDRAM RAS# PRE Time [Auto]Conguration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock]DRAM RAS# ACT Time [Auto]Congurat

ASUS H81M22-17tRDRD_dr [Auto]Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]tRDRD_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 H81M22-19CPU Internal Power ConfigurationCPU Integrated VR Efciency Management [Auto]Allows you to manage the CPU integrated VR efciency. Cong

2-20Chapter 2: Getting started2.5.13 CPU Cache Voltage [Auto]This item allows you to set the CPU cache voltage. Increase the cache voltage when incre

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

ASUS H81M22-212.5.16 CPU Analog I/O Voltage Offset Mode Sign [+]This item allows you to set the CPU analog I/O voltage offset mode sign. Conguration

2-22Chapter 2: Getting started2.6 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other system devices.Be cauti

ASUS H81M22-23Intel Virtualization Technology [Disabled][Enabled] Allows a hardware platform to run multiple operating systems separately and simulta

2-24Chapter 2: Getting startedCPU C3 Report [Enabled]Allows you to disable or enable the CPU C3 report to OS. Conguration options: [Enabled] [Disable

ASUS H81M22-25Entry After [x]Allows you to set the wake-up time.The values range from 0 (immediately) to 120.Active Page Threshold Support [Enabled]Th

2-26Chapter 2: Getting startedS.M.A.R.T. Status Check [Enabled]S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. Wh

ASUS H81M22-27NB PCIe CongurationAllows you to congure the NB PCI Express settings.PCIEX16_1 Link Speed [Auto]Allows you to congure the PCIEX16_1 s

2-28Chapter 2: Getting startedEHCI Hand-off [Disabled][Enabled] Enables the support for operating systems without an EHCI hand-off feature.[Disabled]

ASUS H81M22-29Realtek PXE Option ROM [Disabled]This item appears only when you set the previous item to [Enabled] and allows you to enable or disable

2-30Chapter 2: Getting started2.6.8 APMRestore AC Power Loss [Power Off][Power On] The system goes into on state after an AC power loss.[Power Off]

viH81M2 specications summary(continued on the next page)CPU LGA1150 socket for 4th Generation Intel® CoreTM i7/i5/i3, Pentium®, Celeron® ProcessorsSu

ASUS H81M22-312.7 Monitor menuThe Monitor menu displays the system temperature/power status, and allows you to change the fan settings.Scroll down to

2-32Chapter 2: Getting startedCPU Fan Speed Low Limit [200 RPM]This item appears only when you enable the CPU Q-Fan Control feature and allows you to

ASUS H81M22-33Chassis Fan Prole [Standard]This item appears only when you enable the Chassis Q-Fan Control feature and allows you to set the appropri

2-34Chapter 2: Getting started2.8 Boot menuThe Boot menu items allow you to change the system boot options.Scroll down to display the other items.2.8

ASUS H81M22-35PS/2 Keyboard and Mouse Support [Auto]Select any of these settings when PS/2 keyboard and mouse are installed. These settings only apply

2-36Chapter 2: Getting started2.8.4 Wait for ‘F1’ If Error [Enabled]When this item is set to [Enabled], the system waits for the F1 key to be pressed

ASUS H81M22-37Boot from Storage Devices [Legacy OPR...]Allows you to select the type of storage devices that you want to launch. Conguration options:

2-38Chapter 2: Getting startedLoad PK from FileAllows you to load the downloaded PK from a USB storage device.The PK le must be formatted as a UEFI v

ASUS H81M22-39DBX ManagementThe dbx (Revoked Signature database) lists the forbidden images of db items that are no longer trusted and cannot be loade

2-40Chapter 2: Getting started2.9 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <E

viiH81M2 specications summaryAudio Realtek® ALC887 7.1-channel Audio CODEC- Supports jack-detection, multi-streaming, front panel jack-restasking*

ASUS H81M22-412.10 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to

2-42Chapter 2: Getting started

H81M2A-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the fo

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

H81M2A-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894-3447Fax +886

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

viiiH81M2 specications summaryInternal connectors2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports1 x USB 3.0/2.0 connector supports

ASUS H81M21-1Product introduction11.1 Before you proceedTake note of the following precautions before you install motherboard components or change an