Asus H81M-C, H81M-CSM User Manual

H81M-C H81M-C/CSM

Motherboard

E8447

First Edition V1

July 2013

Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.

ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.

Offer to Provide Source Code of Certain Software

This product contains copyrighted software that is licensed under the General Public License (“GPL”), under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software Licenses. Such software in this product is distributed without any warranty to the extent permitted by the applicable law. Copies of these licenses are included in this product.

Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, either

(1)for free by downloading it from http://support.asus.com/download

or

(2)for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to:

ASUSTeK Computer Inc.

Legal Compliance Dept.

15 Li Te Rd.,

Beitou, Taipei 112

Taiwan

In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you.

The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary/object code.

This offer is valid to anyone in receipt of this information.

ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notification to the email address [e-mail], stating the product and describing the problem (please DO NOT send large attachments such as source code archives, etc. to this email address).

ii

Contents

Safety information.......................................................................................	iv
About this guide..........................................................................................	iv
Package contents........................................................................................	vi
H81M-C specifications summary...............................................................	vi

Product introduction

1.1	Before you proceed......................................................................	1-1
1.2	Motherboard overview.................................................................	1-1
1.3	Central Processing Unit (CPU)....................................................	1-3
1.4	System memory............................................................................	1-7
1.5	Expansion slots............................................................................	1-9
1.6	Jumpers.......................................................................................	1-10
1.7	Connectors..................................................................................	1-12
1.8	Onboard LEDs.............................................................................	1-19
1.9	Software support........................................................................	1-20

BIOS information

2.1	Managing and updating your BIOS.............................................	2-1
2.2	BIOS setup program.....................................................................	2-6
2.3	My Favorites................................................................................	2-10
2.4	Main menu...................................................................................	2-11
2.5	Ai Tweaker menu........................................................................	2-13
2.6	Advanced menu..........................................................................	2-22
2.7	Monitor menu..............................................................................	2-31
2.8	Boot menu...................................................................................	2-34
2.9	Tools menu..................................................................................	2-40
2.10	Exit menu.....................................................................................	2-41

Appendices

Notices.......................................................................................................	A-1
ASUS contact information........................................................................	A-3

iii

Safety information

Electrical safety

•To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.

•When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.

•Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged.

•Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit.

•Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.

•If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.

Operation safety

•Before installing the motherboard and adding components, carefully read all the manuals that came with the package.

•Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.

•To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.

•Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may be exposed to moisture.

•Place the product on a stable surface.

•If you encounter technical problems with the product, contact a qualified service technician or your retailer.

About this guide

This user guide contains the information you need when installing and configuring the motherboard.

How this guide is organized

This guide contains the following parts:

•Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it supports. It includes descriptions of the switches, jumpers, and connectors on the motherboard.

•Chapter 2: BIOS information

This chapter discusses changing system settings through the BIOS Setup menus. Detailed descriptions fo the BIOS parameters are also provided.

iv

Where to find more information

Refer to the following sources for additional information and for product and software updates.

1.ASUS websites

The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.

2.Optional documentation

Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.

Conventions used in this guide

To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself when completing a task.

CAUTION: Information to prevent damage to the components when completing a task

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Typography

Bold text	Indicates a menu or an item to select.
Italics	Used to emphasize a word or a phrase.
<Key>	Keys enclosed in the less-than and greater-than sign
	means that you must press the enclosed key.
	Example: <Enter> means that you must press the Enter or
	Return key.
<Key1> + <Key2> + <Key3>	If you must press two or more keys simultaneously, the key
	names are linked with a plus sign (+).

Package contents

Check your motherboard package for the following items.

Motherboard		ASUS H81M-C motherboard
Cables		2 x Serial ATA 6.0 Gb/s cables
Accessories		1 x I/O Shield
Application DVD		Support DVD
Documentation		User Guide

If any of the above items is damaged or missing, contact your retailer.

H81M-C specifications summary

CPU

Chipset

Memory

Graphics

Expansion slots

Storage

Audio

LGA1150 socket for 4th Generation Intel® CoreTM i7/i5/i3, Pentium®, Celeron® Processors

Supports Intel® 22nm CPU

Supports Intel® Turbo Boost Technology 2.0*

*The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.

**Refer to www.asus.com for Intel® CPU support list.

Intel® H81 Express Chipset

2 x DIMM, max. 16GB, DDR3 1600 / 1333 / 1066 MHz, non-ECC, unbuffered memory*

Dual-channel memory architecture

Supports Intel® Extreme Memory Profile (XMP)

*Hyper DIMM support is subject to the physical characteristics of individual CPUs.

Please refer to the Memory QVL (Qualified Vendors List) for details.

**Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List).

***Due to Intel® chipset limitation, the DDR3 1600MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600MHz.

Multi-VGA output support: D-SUB, DVI-D ports

-Supports DVI-D with max.resolution of 1920 x 1200 @60Hz

-Supports D-SUB with max. resolution of 1920 x 1200 @60Hz

Maximum shared memory of 1024 MB

1 x PCI Express 2.0 x16 slot

2 x PCI Express 2.0 x1 slots

1 x PCI slot

Intel® H81 Express Chipset:

-2 x Serial ATA 6.0 Gb/s connector (yellow)

-2 x Serial ATA 3.0 Gb/s connector (dark brown)

Realtek® ALC887 7.1-channel Audio CODEC

- Supports jack-detection, multi-streaming, front panel jack-restasking

	* Use a chassis with HD audio module in the front panel to support an 7.1-channel
	audio output.
LAN	Realtek 8111G PCIe Gigabit LAN controller
	(continued on the next page)

vi

H81M-C specifications summary

USB

ASUS unique features

Special Features

Rear panel I/O ports

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 ports at back panel)

ASUS EZ DIY

-ASUS CrashFree BIOS 3

-ASUS EZ Flash 2

-ASUS MyLogo 2

-ASUS Q-SLOT

ASUS Exclusive Features

-ASUS ESD Guards - Enhanced ESD protection

-ASUS High-Quality 5K-Hour Solid Capacitors - 2.5x long lifespan with excellent durability

-ASUS Stainless Steel Back I/O - 3x more durable corrosion-resistant coating

-ASUS GPU Boost

-ASUS USB 3.0 Boost

-ASUS Network iControl

-ASUS AI Suite 3

-ASUS AI Charger

-ASUS Anti-surge

-ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface

-ASUS EPU

ASUS Quiet Thernal Solution

- ASUS FAN Xpert

100% Solid Capacitors

ASUS Webstorage

100% All High-quality Conductive Polymer Capacitors

1 x PS/2 keyboard port (purple)

1 x PS/2 mouse port (green)

1 x DVI port

1 x RGB port

1 x LPT port

1 x LAN (RJ-45) port

2 x USB 3.0/2.0 ports

4 x USB 2.0/1.1 ports

3 x Audio jacks support 8-channel audio output

(continued on the next page)

vii

H81M-C specifications summary

Internal connectors

BIOS features

Manageability

Support DVD

Operating

System

Support

Form factor

2 x USB 2.0/1.1 connectors support additional 4 USB 2.0 ports 2 x SATA 6.0 Gb/s connectors

2 x SATA 3.0 Gb/s connectors

1 x CLRTC jumper

1 x 4-pin CPU fan connector

1 x 4-pin Chassis fan connectors

1 x Front panel audio connector (AAFP)

1 x System panel connector

1 x Speaker connector

1 x TPM Header

1 x COM connector

1 x 24-pin ATX power connector

1 x 4-pin ATX 12V power connector

64 Mb Flash ROM, UEFI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS v2.7, ACPI v2.0a, SLP3.0, EUP-ready

WOL, PXE, PME Wake up

Drivers

ASUS utilities

EZ Update

Anti-virus software (OEM version)

Windows® 8 / Windows® 7

uATX form factor: 9.6”x 7” (24.4cm x 17.8cm)

Specifications are subject to change without notice.

viii

Product introduction

1

1.1Before you proceed

Take note of the following precautions before you install motherboard components or change any motherboard settings.

• Unplug the power cord from the wall socket before touching any component.

• Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.

•Hold components by the edges to avoid touching the ICs on them.

•Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component.

•Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, or components.

1.2Motherboard overview

Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits.

Unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage to motherboard components.

1.2.1Placement direction

When installing the motherboard, place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image.

1.2.2Screw holes

Place six screws into the holes indicated by circles to secure the motherboard to the chassis.

Do not overtighten the screws! Doing so can damage the motherboard.

ASUS H81M-C

1-1

Place this side towards the rear of the chassis

H81M-C

1.2.3Motherboard layout

KBMS

DVI

LPT

VGA

USB3~6

LAN_USB3_12

AUDIO

RTL 8111G

Super

I/O

ALC SB_PWR

887-VD2

AAFP

16

15 14

1	2	3		4	3	5
			8cm(7.0in)
				CPU_FAN
	ATX12V		DIGI
			+VRM
					-pin module)	-pin module)
	CHA_FAN		LGA1150		DDR3DIMM A1 (64bit, 240	DDR3DIMM B1 (64bit, 240	EATXPWR	24.4cm(9.6in)	2
	USBPW1PS26-
			BATTERY
	COM		H81M-C
			PCIEX16_1
							8Mb
	PCIEX1_1						BIOS
			ASM		Intel®		SATA3G_1
					H81
	PCIEX1_2		1083						6
			PCI1	SPEAKER			SATA3G_2
				F_PANEL					7
	TPM		USB910	USB1112USBPW9-12	SATA6G_1 SATA6G_2
				CLRTC
	13		12	11 10	9		8

1-2	Chapter 1: Product introduction

1.2.4Layout contents

Connectors/Jumpers/Slots/LED		Page
1.	PS2 and USB device wakeup (PS2_USBPW1~6)	1-11
2.	ATX power connectors (24-pin ATXPWR, 4-pin ATX12V)	1-14
3.	CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)	1-16
4.	Intel® LGA1150 CPU socket	1-3
5.	DDR3 DIMM slots	1-7
6.	Intel® H81 Serial ATA 3.0Gb/s connector (7-pin SATA3G_1~2 [dark brown])	1-16
7.	Speaker connector (4-pin SPEAKER)	1-18
8.	Intel® H81 Serial ATA 6.0Gb/s connector (7-pin SATA6G_1~2 [yellow])	1-15
9.	System panel connector (10-1 pin F_PANEL)	1-18
10.	USB device wake-up (USBPW9~12)	1-12
11.	Clear RTC RAM (3-pin CLRTC)	1-10
12.	USB 2.0 connectors (10-1 pin USB910, USB1112)	1-17
13.	TPM header (20-1 pin TPM)	1-14
14.	Onboard LED (SB_PWR)	1-19
15.	Front panel audio connector (10-1 pin AAFP)	1-15
16.	Serial port connectors (10-1 pin COM)	1-17

1.3Central Processing Unit (CPU)

This motherboard comes with a surface mount LGA1150 socket designed for the Intel® 4th generation Core™ i7 / Core™ i5 / Core™ i3, Pentium® , Celeron® processors.

H81M-C

H81M-C CPU socket LGA1150

ASUS H81M-C

1-3

Unplug all power cables before installing the CPU.

•Ensure that you install the correct CPU designed for the LGA1150 socket only. DO

NOT install a CPU designed for LGA1155 and LGA1156 sockets on the LGA1150 socket.

•Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/ transit-related.

•Keep the cap after installing the motherboard. ASUS will process Return Merchandise

Authorization (RMA) requests only if the motherboard comes with the cap on the

LGA1150 socket.

•The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.

1.3.1Installing the CPU

1

A

B

2

3

1-4	Chapter 1: Product introduction

4 C 5

A

1.3.2CPU heatsink and fan assembly installation

Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the heatsink and fan if necessary.

ASUS H81M-C

1-5

To install the CPU heatsink and fan assembly

1 A 2

B

B

A

3

4

To uninstall the CPU heatsink and fan assembly

1

2

A

B

B

A

1-6	Chapter 1: Product introduction

1.4System memory

1.4.1Overview

This motherboard comes with two 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 1.65V is recommended to protect the CPU.

DIMM_B1

DIMM_A1

H81M-C

H81M-C 240-pin DDR3 DIMM sockets

Channel	Sockets
Channel A	DIMM_A1
Channel B	DIMM_B1

1.4.2Memory configurations

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

•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 configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.

•Due to Intel® chipset limitation, DDR3 1600MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600MHz.

•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 3GB 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 512Mb (64MB) chips or less.

ASUS H81M-C

1-7

•The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. To operate at the vendor-marked

or at a higher frequency, refer to section 2.5 Ai Tweaker menu for manual memory frequency adjustment.

•For system stability, use a more efficient memory cooling system to support a full memory load (2 DIMMs) or overclocking condition.

•Visit the ASUS website at: www.asus.com for the latest QVL.

1.4.3Installing a DIMM

Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components.

1.Press the retaining clips outward to unlock a DIMM socket.

2.Align a DIMM on the socket such that the notch on the

DIMM matches the DIMM slot key on the socket.

1

Unlocked retaining clip

2

DIMM notch

1

DIMM slot key

A DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into a socket in the wrong direction to avoid damaging the DIMM.

3.	Firmly insert the DIMM into the	3
	socket until the retaining clips snap
	back in place and the DIMM is
	properly seated.
1.4.4	Removing a DIMM	Locked Retaining Clip

To remove a DIMM:

1.Simultaneously press the retaining clips outward to unlock the DIMM.

1-8	Chapter 1: Product introduction

Support the DIMM lightly with	2
your fingers when pressing the
retaining clips. The DIMM might	1
get damaged when it flips out
with extra force.

1

DIMM notch

2.Remove the DIMM from the socket.

1.5Expansion slots

In the future, you may need to install expansion cards. The following sub sections describe the slots and the expansion cards that they support.

Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components.

1.5.1Installing an expansion card

To install an expansion card:

1.Before installing the expansion card, read the documentation that came with it and make the necessary hardware settings for the card.

2.Remove the system unit cover (if your motherboard is already installed in a chassis).

3.Remove the bracket opposite the slot that you intend to use. Keep the screw for later use.

4.Align the card connector with the slot and press firmly until the card is completely seated on the slot.

5.Secure the card to the chassis with the screw you removed earlier.

6.Replace the system cover.

1.5.2Configuring an expansion card

After installing the expansion card, configure it by adjusting the software settings.

1.Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for information on BIOS setup.

2.Assign an IRQ to the card.

3.Install the software drivers for the expansion card.

When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable.

ASUS H81M-C

1-9

1.5.3PCI Express 2.0 x1 slots

This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications.

1.5.4PCI Express x16 slot

This motherboard has a PCI Express x16 slot that supports PCI Express x16 graphic cards complying with the PCI Express specifications.

1.5.3PCI slots

The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications.

IRQ assignments for this motherboard

LAN	A	B	C	D	E	F	G	H
	–	–	shared	–	–	–	–	–
PCIE x16_1	shared	–	–	–	–	–	–	–
PCIE x1_1	–	–	shared	–	–	–	–	–
PCIE x1_2	–	–	–	shared	–	–	–	–
PCIE x1_3	shared	–	–	–	–	–	–	–
Intel PCH SATA Controller	–	–	–	shared	–	–	–	–
HD Audio	–	–	–	–	–	–	shared	–
USB2.0_1	–	–	–	–	–	–	–	shared
USB2.0_2	–	–	–	–	shared	–	–	–
USB3.0	–	–	–	–	–	shared	–	–

1.6Jumpers

1.Clear RTC RAM (3-pin CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.

		CLRTC
H81M-C	1	2	2	3
	Normal		Clear RTC
	(Default)

H81M-C Clear RTC RAM

To erase the RTC RAM:

1.Turn OFF the computer and unplug the power cord.

1-10	Chapter 1: Product introduction

2.Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3

for about 5-10 seconds, then move the cap back to pins 1-2. 3.	Plug the
power cord and turn ON the computer.

4.Hold down the <Del> key during the boot process and enter BIOS setup to reenter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!

• 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 the CMOS, reinstall the battery.

•You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values.

2.PS2 and USB device wake-up (PS2_USBPW1~6)

Set this jumper to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode).

PS2_USBPW1-6

3

	2	2
H81M-C	1
	+5V	+5VSB
		(Default)

H81M-C Keyboard Power Setting

•The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port; otherwise, the system would not power up.

•The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode.

ASUS H81M-C

1-11

3.USB device wake-up (USBPW9~12)

This jumper allows you to enable or disable the USB device wake-up feature. When you set this jumper to pins 2-3 (+5VSB), you can wake up the computer by pressing a key on the USB keyboard or by clicking on the USB mouse. This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS.

H81M-C	USBPW9-12
	1	2	2	3
	+5V		+5VSB
	(Default)

H81M-C USB Device Wake Up

1.7Connectors

1.7.1Rear panel connectors

1

2

3

4

5

11

10

9

8

7

6

1. PS/2 mouse port (green). This port is for a PS/2 mouse.

2. Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

3. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.

LAN port LED indications				Activity Link			Speed
					LED		LED
Activity/Link LED		Speed LED
Status	Description	Status	Description
Off	No link	OFF	10Mbps connection
Orange	Linked	ORANGE	100Mbps
						LAN port
			connection
Orange (Blinking)	Data activity	GREEN	1Gbps connection
Orange (Blinking	Ready to wake
then steady)	up from S5 mode

1-12	Chapter 1: Product introduction

4.Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.

5.Line Out port (lime). This port connects to a headphone or a speaker. In the 4.1, 5.1 and 7.1-channel configurations, the function of this port becomes Front Speaker Out.

6.Microphone port (pink). This port connects to a microphone.

Refer to the audio configuration table for the function of the audio ports in 2.1, 4.1, 5.1, or 7.1-channel configuration.

Audio 2.1, 4.1, 5.1, or 7.1-channel configuration

Port	Headset	4.1-channel	5.1-channel	7.1-channel
	2.1-
	channel
Light Blue (Rear panel)	Line In	Rear Speaker Out	Rear Speaker Out	Rear Speaker Out
Lime (Rear panel)	Line Out	Front Speaker Out	Front Speaker Out	Front Speaker Out
Pink (Rear panel)	Mic In	Mic In	Bass/Center	Bass/Center
Lime (Front panel)	-	-	-	Side Speaker Out

To configure an 7.1-channel audio output:

Use a chassis with HD audio module in the front panel to support an 7.1-channel audio output.

7.USB 3.0 ports 1 and 2. These two 9-pin Universal Serial Bus (USB) ports are for USB 3.0 devices.

•DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows® operating system.

• Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a Windows® OS environment and after USB 3.0 driver installation.

•USB 3.0 devices can only be used for data storage.

•We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster and better performance from your USB 3.0 devices.

8.USB 2.0 ports 3~6. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices.

9.Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.

10.DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to output RGB Signal to CRT and is not compatible with DVI-I.

11.PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

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1.7.2Internal connectors

1.ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.

	ATX12V			EATXPWR
	DC DC		+3 Volts		GND
	+12V	+12V
			+12	Volts	+5 Volts
			+12	Volts	+5 Volts
			+5V Standby		+5 Volts
		PIN 1	Power OK		-5 Volts
				GND	GND
	GND GND
				GND	GND
			+5 Volts		GND
	H81M-C		+5 Volts		PSON#
				GND	GND
			+3	Volts	-12 Volts
			+3	Volts	+3 Volts
				PIN 1

H81M-C ATX power connectors

•For a fully configured system, we recommend that you use a power supply unit

(PSU) that complies with ATX 12V Specification 2.0 (or later version) and provides a minimum power of 350W.

•DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up.

•We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate.

•If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

2.TPM connector (20-1 pin TPM)

This connector supports a Trusted Platform Module (TPM) system, which securely store keys, digital certificates, passwords and data. A TPM system also helps enhance network security, protect digital identities, and ensures platform integrity.

TPM
SB SUS STAT GND +3VSB SMBSCL LAD0 +3V LAD3 PCIRST# FRAME PCICLK
	PIN 1
H81M-C
RESET GPIO SERIRQ SMBSDA GND LAD1 LAD2 PWROWN	GND

H81M-C TPM Connector

The TPM module is purchased separately.

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3.Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.

H81M-C

AGND NC SENSE1 RETUR	SENSE2 RETUR
AAFP
PORT1 L PORT1 R PORT2 R SENSE SEND PORT2 L

HD-audio-compliant

pin definition

AGND NC NC

NC

PIN 1

Line out_L

NC

Line out_R

MICPWR

MIC2

Legacy AC’97 compliant definition

H81M-C Front panel audio connector

•We recommend that you connect a high-definition front panel audio module to this

connector to avail of the motherboard’s high-definition audio capability.

•If you want to connect a high-definition front panel audio module to this connector, set the Front Panel Type item in the BIOS setup to [HD]. If you want to connect an

AC’97 front panel audio module to this connector, set the item to [AC97]. By default, this connector is set to [HD]. See section 2.6.7 Onboard Devices Configuration for details.

4.Intel® H81 Serial ATA 6.0Gb/s connector (7-pin SATA6G_1~2 [yellow])

This connector connects to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s signal cables.

H81M-C

							SATA6G_1	SATA6G_2
							GND RSATA RXP1 RSATA RXN1 GND RSATA TXN1 RSATA TXP1 GND	GND RSATA RXP2 RSATA RXN2 GND RSATA TXN2 RSATA TXP2 GND

H81M-C SATA 6.0Gb/s connectors

•You must install Windows. XP Service Pack 3 or later version before using Serial ATA hard disk drives.

•When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI]. See section 2.6.3 SATA Configuration for details.

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