Asus H81-PLUS Specifications Page 1

MotherboardH81-PLUS

1-2Chapter 1: Product introductionH81-PLUSPlace this side towards the rear of the chassis1.2.3 Motherboard layoutH81-PLUSPCIEX16_1PCIEX1_1PCIEX1_2ASM

ASUS H81-PLUS1-31.2.4 Layout contentsConnectors/Jumpers/Slots/LED Page1. Keyboard and USB device wakeup (KB_USBPWB) 1-122. CPU and chassis fan conne

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

ASUS H81-PLUS1-5ABC541.3.2 CPU heatsink and fan assembly installationApply the Thermal Interface Material to the CPU heatsink and CPU before you inst

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

ASUS H81-PLUS1-71.4 System memory1.4.1 OverviewThis motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. A

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

ASUS H81-PLUS1-92. Remove the DIMM from the socket.Support the DIMM lightly with your ngers when pressing the retaining clips. The DIMM might get da

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 H81-PLUS1-11• If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearin

iiE8451First 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 LED4 5368 7210 91111. PS/2 mouse port (g

ASUS H81-PLUS1-134. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.5. Line Out port (lime). This

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 H81-PLUS1-153. Front panel audio connector (10-1 pin AAFP)This connector is for a chassis-mounted front panel audio I/O module that supports eit

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 H81-PLUS1-177. USB 2.0 connectors (10-1 pin USB56, USB910, USB1112)These connectors are for USB 2.0 ports. Connect the USB module cable to any o

1-18Chapter 1: Product introduction1.8 Onboard LEDs1. Standby Power LEDThe motherboard comes with a standby power LED that lights up to indicate tha

ASUS H81-PLUS1-191.9 Software support1.9.1 Installing an operating systemThis motherboard supports Windows® 7 (32bit/64bit) and Windows® 8 (32bit/64

ASUS H81-PLUS2-12.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore th

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

iiiContentsSafety information ... ivAbout this guide ...

ASUS H81-PLUS2-32.1.3 ASUS CrashFree BIOS 3The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it fails o

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 H81-PLUS2-53. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <En

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 H81-PLUS2-7• The boot device options vary depending on the devices you installed to the system.• The Boot Menu(F8) button is available only whe

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

ASUS H81-PLUS2-9Pop-up windowSelect a menu item and press <Enter> to display a pop-up window with the conguration options for that item.Scroll

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 H81-PLUS2-112.4 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an

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

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

ASUS H81-PLUS2-132.5 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing the settings

2-14Chapter 2: Getting startedScroll down to display the following items:Target CPU Turbo-Mode Speed : xxxxMHzDisplays the target CPU Turbo-Mode speed

ASUS H81-PLUS2-152-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-Cor

2-16Chapter 2: Getting started2.5.9 EPU Power Saving Mode [Disabled]Allows you to enable or disable the EPU power saving function. Conguration optio

ASUS H81-PLUS2-17DRAM CAS# Write Latency [Auto]Conguration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock]RTL IOL controlDRAM RTL initial Value [Aut

2-18Chapter 2: Getting startedMISCMRC Fast Boot [Enabled]Allows you to enable or disable the MRC fast boot.[Enabled] Enables the MRC fast boot.[Disab

ASUS H81-PLUS2-19Manual Adjustment [Fast]Allows you to set a response for the CPU power phase control. Conguration options: [Ultra Fast] [Fast] [Medi

2-20Chapter 2: Getting startedCPU Internal Power Switching FrequencyFrequency Tuning Mode [Auto]Allows you to set the frequency tuning mode. Congurat

ASUS H81-PLUS2-21Power Saving Level 3 Threshhold [Auto]Allows you to set the power saving level 3 threshhold. Use the <+> and <-> keys to

2-22Chapter 2: Getting started2.5.16 CPU Graphics Voltage [Auto]This item allows you to set the CPU graphics voltage. Increase the graphics voltage w

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

ASUS H81-PLUS2-232.5.19 CPU Digital I/O Voltage Offset Mode Sign [+]This item allows you to set the CPU digital I/O voltage offset mode sign. Congur

2-24Chapter 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 H81-PLUS2-25Limit CPUID Maximum [Disabled][Enabled] Allows legacy operating systems to boot even without support for CPUs with extended CPUID fu

2-26Chapter 2: Getting startedThe following items appear only when you set the CPU C states to [Enabled].Enhanced C1 state [Enabled][Enabled] Enables

ASUS H81-PLUS2-27Entry on S3 RTC Wake [Enabled]The system automatically wakes up and set to Rapid Start Technology S4 mode.Conguration options: [Enab

2-28Chapter 2: Getting startedIDE Legacy / Native Mode Selection [Native]This item appears only when you set the SATA Mode Selection item to [IDE]. Co

ASUS H81-PLUS2-29DMI Link ASPM Control [Auto]Allows you to enable or disable the control of Active State Power Management on SA side of the DMI Link.

2-30Chapter 2: Getting startedUSB_3~6, 9~12 [Enabled] Allows you to enable or disable an individual USB port. Refer to the section 1.2.3 Motherboard l

ASUS H81-PLUS2-31Change Settings [IO=3F8h; IRQ=4]This item appears only when you set the Serial Port to [Enabled] and allows you to select the Serial

2-32Chapter 2: Getting started2.7 Monitor menuThe Monitor menu displays the system temperature/power status, and allows you to change the fan setting

viH81-PLUS specications summary(continued on the next page)CPU LGA1150 socket for 4th Generation Intel® CoreTM i7/i5/i3, Pentium®, Celeron® Processor

ASUS H81-PLUS2-332.7.1 CPU Temperature [xxxºC/xxxºF]The onboard hardware monitor automatically detects and displays the CPU temperature. Select Ignor

2-34Chapter 2: Getting startedCPU Fan Max. Duty Cycle(%) [100]Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The value

ASUS H81-PLUS2-352.8 Boot menuThe Boot menu items allow you to change the system boot options.Scroll down to display the following items:2.8.1 Fast

2-36Chapter 2: Getting startedUSB Support [Partial In...][Disabled] All USB devices will not be available until OS boot up for a fastest POST time

ASUS H81-PLUS2-372.8.3 Bootup NumLock State [On][On] Sets the power-on state of the NumLock to [On].[Off] Sets the power-on state of the NumLock to

2-38Chapter 2: Getting startedBoot from Storage Devices [Legacy OpR...]Allows you to select the type of storage devices that you want to launch. Cong

ASUS H81-PLUS2-39KEK ManagementThe KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (db

2-40Chapter 2: Getting started2.8.10 Boot Option PrioritiesThese items specify the boot device priority sequence from the available devices. The numb

ASUS H81-PLUS2-412.9 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter> to d

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

viiH81-PLUS specications summaryAudio Realtek® ALC887 8-channel Audio CODEC- Supports jack-detection, multi-streaming, front panel jack-restasking*

H81-PLUSA-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the

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

H81-PLUSA-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

viiiH81-PLUS specications summaryRear panel I/O ports1 x PS/2 keyboard port (purple)1 x PS/2 mouse port (green)1 x RGB port1 x LAN (RJ-45) port2 x US

ASUS H81-PLUS1-1Product introduction11.1 Before you proceedTake note of the following precautions before you install motherboard components or change