Asus H81M-C User Manual

MotherboardH81M-CH81M-C/CSM

1-2Chapter 1: Product introductionH81M-CPlace this side towards the rear of the chassis1.2.3 Motherboard layoutH81M-CPCIEX16_1PCIEX1_1PCIEX1_2PCI1RTL

ASUS H81M-C1-31.2.4 Layout contentsConnectors/Jumpers/Slots/LED Page1. PS2 and USB device wakeup (PS2_USBPW1~6) 1-112. ATX power connectors (24-pin

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

ASUS H81M-C1-5ABC541.3.2 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 H81M-C1-71.4 System memory1.4.1 OverviewThis motherboard comes with two 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 H81M-C1-92. 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 Express 2.0 x1 slotsThis motherboard supports PCI Express x1 network cards, SCSI cards, and other cards

ASUS H81M-C1-11• If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing

iiE8447First Edition V1July 2013Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and software

1-12Chapter 1: Product introduction1.7 Connectors1.7.1 Rear panel connectorsLAN portSpeed LEDActivity Link LED374 56111210 981. PS/2 mouse port (gr

ASUS H81M-C1-134. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.5. Line Out port (lime). This po

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 H81M-C1-153. Front panel audio connector (10-1 pin AAFP)This connector is for a chassis-mounted front panel audio I/O module that supports eithe

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 H81M-C1-177. 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 c

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

ASUS H81M-C1-191.8 Onboard LEDs1. Standby Power LEDThe motherboard comes with a standby power LED that lights up to indicate that the system is ON,

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

ASUS H81M-C2-12.1 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

iiiContentsSafety information ... ivAbout this guide ...

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 H81M-C2-32.1.3 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 to a DOS environment1. Insert the DOS-bootable USB ash drive with the latest BIOS le and BIOS Updat

ASUS H81M-C2-53. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <Ente

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 H81M-C2-7• 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 startedNavigation keysGeneral helpMenu barSubmenu itemConguration eldsMenu itemsBack buttonPop-up windowScroll barMenu itemsTh

ASUS H81M-C2-9Submenu itemsA greater than sign (>) before each item on any menu screen means that the item has a submenu. To display the submenu, s

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

ASUS H81M-C2-112.4 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an ov

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

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

ASUS H81M-C2-132.5 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing the settings o

2-14Chapter 2: Getting startedTarget CPU Turbo-Mode Speed : xxxxMHzDisplays the target CPU Turbo-Mode speed.Target DRAM Speed : xxxxMHzDisplays the ta

ASUS H81M-C2-152-Core Ratio Limit [Auto]This item becomes congurable only when you set CPU Core Ratio to [Per Core] and allows you to set the 2-Core

2-16Chapter 2: Getting started2.5.9 GPU Boost [As is]Allows you to enable the GPU Boost to accelerate the integrated GPU for extreme graphics perform

ASUS H81M-C2-17DRAM WRITE to READ Delay [Auto]Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]DRAM CKE Minimum pulse width [Auto]Congura

2-18Chapter 2: Getting startedtRDWR_dr [Auto]Conguration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock]tRDWR_dd [Auto]Conguration options: [Auto]

ASUS H81M-C2-19Package Power Time Window [Auto]Allows you to set the package power time window.Use the <+> and <-> keys to adjust the valu

2-20Chapter 2: Getting startedCPU Internal Power Saving ControlPower Saving Level 1 Threshhold [Auto]Allows you to set the power saving level 1 thresh

ASUS H81M-C2-212.5.15 CPU Graphics Voltage [Auto]This item allows you to set the CPU graphics voltage. Increase the graphics voltage when increasing

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

2-22Chapter 2: Getting started2.5.18 CPU Digital I/O Voltage Offset Mode Sign [+]This item allows you to set the CPU digital I/O voltage offset mode

ASUS H81M-C2-232.6.1 CPU CongurationThe items in this menu show the CPU-related information that the BIOS automatically detects.The items shown in s

2-24Chapter 2: Getting startedBoot performance mode [Max Non-Tu...]This item allows you to select the boot performance mode. Conguration options: [Ma

ASUS H81M-C2-25Package C State Support [Auto]Allows you to disable or enable the whole C-State package support. Conguration options: [Auto] [Enabled]

2-26Chapter 2: Getting startedIntel® Smart Connect Technology [Disabled]ISCT Support [Disabled]Allows you to enable or disable the ISCT support. Cong

ASUS H81M-C2-27Graphics CongurationAllows you to select a primary display from iGPU, and PCIe graphical devices.Primary Display [Auto]Allows you to s

2-28Chapter 2: Getting started2.6.5 USB CongurationThe items in this menu allow you to change the USB-related features.The USB Devices item shows th

ASUS H81M-C2-292.6.7 Onboard Devices CongurationHD Audio Controller [Enabled][Enabled] Enables the HD Audio Device.[Disabled] Disables the HD Audi

2-30Chapter 2: Getting startedChange Settings [Auto]Allows you to select an optimal setting for Super I/O devices. Conguration options: [Auto] [IO=37

ASUS H81M-C2-312.6.9 Network Stack CongurationNetwork Stack [Disabled]This item allows user to disable or enable the UEFI network stack. Conguratio

viH81M-C specications summary(continued on the next page)CPU LGA1150 socket for 4th Generation Intel® CoreTM i7/i5/i3, Pentium®, Celeron® ProcessorsS

2-32Chapter 2: Getting started2.7.1 CPU Temperature [xxxºC/xxxºF]The onboard hardware monitor automatically detects and displays the CPU temperature.

ASUS H81M-C2-33CPU Lower Temperature [20]Displays the lower limit of the CPU temperature.CPU Fan Min. Duty Cycle(%) [20]Use the <+> and <->

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

ASUS H81M-C2-35USB Support [Partial In...][Disabled] All USB devices will not be available until OS boot up for a fastest POST time.[Full Initiali

2-36Chapter 2: Getting started2.8.3 Bootup NumLock State [On][On] Sets the power-on state of the NumLock to [On].[Off] Sets the power-on state of t

ASUS H81M-C2-37Boot 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 H81M-C2-39Allows you to load the additional DBX from a storage device so that more db’s images cannot be loaded.The DBX le must be formatted as

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

ASUS H81M-C2-412.10 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to

viiH81M-C specications summaryUSB Intel® H81 Express Chipset- 2 x USB 3.0/2.0 ports at back panel- 8 x USB2.0/1.1 ports (4 ports at midboard, 4 por

2-42Chapter 2: Getting started

H81M-CA-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

H81M-CA-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894-3447Fax +88

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

viiiH81M-C specications summaryInternal connectors2 x USB 2.0/1.1 connectors support additional 4 USB 2.0 ports2 x SATA 6.0 Gb/s connectors2 x SATA 3

ASUS H81M-C1-1Product introduction11.1 Before you proceedTake note of the following precautions before you install motherboard components or change a