ASUS M5A78L-M LE/USB3 User Manual

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Motherboard

M5A78L-M LE/USB3

E10372

First Edition

April 2015

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, modied or altered, unless

such repair, modication 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

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owners’ benet, 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

(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

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the product and describing the problem (please DO NOT send large attachments such as source code

archives, etc. to this email address).

iii

Contents

Safety information ....................................................................................................... v

About this guide .......................................................................................................... v

Package contents ...................................................................................................... vii

M5A78L-M LE/USB3 specications summary ........................................................ vii

Chapter 1: Product introduction

1.1 Before you proceed ...................................................................................... 1-1

1.2 Motherboard overview ................................................................................. 1-2

1.3 Central Processing Unit (CPU) .................................................................... 1-4

1.3.1 CPU installation .............................................................................. 1-5

1.3.2 CPU heatsink and fan assembly installation ................................... 1-6

1.4 System memory ............................................................................................ 1-8

1.4.1 Overview ......................................................................................... 1-8

1.4.3 Installing a DIMM ............................................................................ 1-9

1.5 Expansion slots .......................................................................................... 1-10

1.6 Headers ....................................................................................................... 1-12

1.7 Connectors .................................................................................................. 1-13

1.7.2 Internal connectors ....................................................................... 1-15

1.8 Software support ........................................................................................ 1-20

1.8.2 Support DVD information .............................................................. 1-20

Chapter 2: BIOS information

2.1 Managing and updating your BIOS ............................................................. 2-1

2.1.1 ASUS Update utility ........................................................................ 2-1

2.1.2 ASUS EZ Flash 2 utility ................................................................... 2-2

2.1.3 ASUS CrashFree BIOS 3 ................................................................ 2-3

2.2 BIOS setup program ..................................................................................... 2-4

2.2.1 BIOS menu screen .......................................................................... 2-5

2.2.2 Menu bar ......................................................................................... 2-5

2.2.3 Navigation keys ............................................................................... 2-5

2.2.4 Menu items ..................................................................................... 2-6

2.2.5 Submenu items ............................................................................... 2-6

2.2.6 Conguration elds ......................................................................... 2-6

2.2.7 Pop-up window ............................................................................... 2-6

2.2.8 Scroll bar ......................................................................................... 2-6

2.2.9 General help ................................................................................... 2-6

2.3 Main menu ..................................................................................................... 2-7

2.3.1 System Time [xx:xx:xx] ................................................................... 2-7

2.3.2 System Date [Day xx/xx/xxxx] ......................................................... 2-7

2.3.3 SATA3G_1~4 .................................................................................. 2-7

2.3.4 SATA Conguration ........................................................................ 2-8

2.3.5 System Information ......................................................................... 2-8

2.4 Advanced menu ............................................................................................ 2-9

2.4.1 JumperFree Conguration .............................................................. 2-9

2.4.2 CPU Conguration ........................................................................ 2-12

2.4.3 Chipset .......................................................................................... 2-13

2.4.4 Onboard Devices Conguration .................................................... 2-14

2.4.5 PCIPnP ......................................................................................... 2-15

2.4.6 USB Conguration ........................................................................ 2-15

2.5 Power menu ................................................................................................ 2-16

2.5.1 Suspend Mode [Auto] ................................................................... 2-16

2.5.2 ACPI 2.0 Support [Enabled] .......................................................... 2-16

2.5.3 ACPI APIC Support [Enabled] ...................................................... 2-16

2.5.4 APM Conguration ........................................................................ 2-16

2.5.5 HW Monitor Conguration ............................................................. 2-17

2.5.6 Anti Surge Support [Enabled] ....................................................... 2-18

2.6 Boot menu ................................................................................................... 2-19

2.6.1 Boot Device Priority ...................................................................... 2-19

2.6.2 Boot Settings Conguration .......................................................... 2-19

2.6.3 Security ......................................................................................... 2-20

2.7 Tools menu ................................................................................................. 2-22

2.7.1 ASUS EZ Flash 2 .......................................................................... 2-22

2.7.2 ASUS O.C. Prole ......................................................................... 2-22

2.8 Exit menu .................................................................................................... 2-23

Contents

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 x it by yourself. Contact a qualied service

technician or your retailer.

Operation safety

• Before installing the motherboard and adding devices on it, 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 become wet.

• Place the product on a stable surface.

• If you encounter technical problems with the product, contact a qualied service

technician or your retailer.

About this guide

This user guide contains the information you need when installing and conguring 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.

• Chapter 2: BIOS information

This chapter tells how to change system settings through the BIOS Setup menus.

Detailed descriptions of the BIOS parameters are also provided.

Where to nd 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 yers,

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 trying to

complete a task.

CAUTION: Information to prevent damage to the components when trying to

complete 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 (+).

vii

(continued on the next page)

M5A78L-M LE/USB3 specications summary

CPU AMD® Socket AM3+ for AMD® FX™ / Phenom™ II / Athlon™ II /

Sempron™ 100 series processors

AMD® Cool ‘n’ Quiet™ Technology

Supports CPU up to 125W

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

Chipset AMD® 760G(780L) / SB710

Front side bus Up to 5.2GT/s HyperTransport™ 3.0 interface

Memory Dual-channel memory architecture

2 x 240-pin DIMM slots support maximum 16GB unbuffered ECC and non-

ECC DDR3 1866 / 1600 / 1333 / 1066MHz memory modules

* AMD® FX™ Series CPU on this motherboard supports up to DDR3

1866MHz as its standard memory frequency.

** Due to CPU specication, AMD® AM3 CPUs on this motherboard

support up to DDR3 1333MHz.

*** Refer to www.asus.com for the latest Memory QVL (Qualied

Vendors List).

Expansion slots 1 x PCIe 2.0 x16 slot

1 x PCIe 2.0 x1 slot

1 x PCI slot

Storage / RAID 4 x Serial ATA 3Gb/s connectors support RAID 0, 1, 10 and JBOD

LAN Realtek 8111GR Gigabit LAN Controller(s)

Audio Realtek® ALC887 8-channel* High Denition Audio CODEC

- Dedicated audio PCB layers: Separate layers for left and right channels

to guard the quality of the sensitive audio signals

- Premium Japanese-made audio capacitors: Provide warm, natural and

immersive sound with exceptional clarity and delity

* Use the chassis with HD audio module in the front panel to support

8-channel audio output.

Package contents

Check your motherboard package for the following items.

Motherboard ASUS M5A78L-M LE/USB3 motherboard

Cables 2 x Serial ATA 3.0 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.

viii

M5A78L-M LE/USB3 specications summary

Specications are subject to change without notice.

USB 8*USB 2.0 ports (4 at mid-board, 4 at back panel)

2*USB 3.0 ports (2 at back panel)

ASUS Unique

Features

ASUS EPU

- EPU

Core Unlocker

ASUS Exclusive Features

- Anti-Surge

- ASUS All 5K-Hour Solid Capacitors

- RAM Overcurrent Protection

- ESD Guards

- Stainless Steel Back I/O

ASUS Quiet Thermal Solution

- ASUS Fan Xpert

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 2

- ASUS MyLogo 2

Back panel I/O ports 1 x PS/2 Keyboard/Mouse combo port

1 x DVI port

1 x D-Sub port

1 x LAN (RJ-45) port

1 x COM port

3 x Audio jacks

2 x USB 3.0 ports

4 x USB 2.0 ports

Internal I/O connectors 2 x USB 2.0 connectors support additional 4 USB 2.0 ports

4 x SATA 3.0Gb/s connectors

1 x CPU fan connector

1 x Chassis fan connector

1 x 24-pin EATX power connector

1 x 4-pin ATX 12V power connector

1 x Front panel audio connector

1 x Internal Speaker connector

1 x System panel connector

BIOS 16Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS 2.5,

ACPI v3.0a

Support DVD Drivers

ASUS PC Probe II

ASUS Update

Anti-Virus software (OEM version)

Form factor uATX form factor: 9.6 in x 7.8 in (24.4 cm x 19.8 cm)

ASUS M5A78L-M LE/USB3 1-1

Product introduction

1.1 Before 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.

1-2 Chapter 1: Product introduction

M5A78L-M LE/USB3

Place this side

towards the rear

of the chassis

1.2 Motherboard overview

Beforeyouinstallthemotherboard,studythecongurationofyourchassistoensurethatthe

motherboardts.

Unplugthepowercordbeforeinstallingorremovingthemotherboard.Failuretodosocan

cause you physical injury and damage to motherboard components.

1.2.1 Placement 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.

1.2.2 Screw 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 M5A78L-M LE/USB3 1-3

1.2.3 Motherboard layout

M5A78L-M LE/USB3

PCIEX16

PCIEX1_1

PCI1

USB78 USB56

AAFP

ATX12V

EATXPWR

CPU_FAN

Super

I/O

ALC

887-VD2

Realtek

8111GR

ICS

9LPRS483

KBMS_USB34

ASM

1042A

CLRTC

16Mb

BIOS

19.8cm(7.8in)

24.4cm(9.6in)

AMD®

760G

AMD®

SB710

DDR3 DIMM_A1 (64bit, 240-pin module)

SOCKET AM3+

DDR3 DIMM_B1 (64bit, 240-pin module)

SATA3G_1 SATA3G_2 SATA3G_3 SATA3G_4

AUDIO

LAN_USB12

USB3_E12

CHA_FAN

F_PANEL

SPEAKER

DVI

BATTERY

VGA

COM

11 3 4

7810 9

1-4 Chapter 1: Product introduction

1.2.4 Layout contents

1.3 Central Processing Unit (CPU)

ThemotherboardcomeswithanAM3+socketdesignedforAMD®FX™Series/Phenom™II/

Athlon™II/Sempron™100SeriesProcessors.

TheAM3+sockethasadifferentpinoutfromtheAM2+/AM2socket.Ensurethatyouusda

CPUdesignedfortheAM3+socket.TheCPUtsinonlyonecorrectorientation.DONOT

forcetheCPUintothesockettopreventbendingthepinsanddamagingtheCPU!

Connectors/Headers/Slots/LED Page

1. ATXpowerconnectors(24-pinEATXPWR,4-pinATX12V) 1-16

2. CPUandchassisfanconnectors(4-pinCPU_FAN,and3-pinCHA_FAN) 1-15

3. AMDAM3+socket 1-4

4. DDR3DIMMslots 1-8

5. Speakerconnector(4-pinSPEAKER) 1-17

6. Systempanelconnector(10-1pinF_PANEL) 1-18

7. SATA3.0Gb/sconnectors(7-pinSATA3G_1~4) 1-17

8. USB2.0connectors(10-1pinUSB56,USB78) 1-19

9. ClearRTCRAM(2-pinCLRTC) 1-12

10. Frontpanelaudioconnector(10-1pinAAFP) 1-19

M5A78L-M LE/USB3 CPU socket AM3+

M5A78L-M LE/USB3

ASUS M5A78L-M LE/USB3 1-5

1.3.1 CPU installation

1-6 Chapter 1: Product introduction

53 4

1.3.2 CPU 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.

To install the CPU heatsink and fan assembly

ASUS M5A78L-M LE/USB3 1-7

To uninstall the CPU heatsink and fan assembly

1-8 Chapter 1: Product introduction

1.4.2 Memorycongurations

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conguration.Any

excessmemoryfromthehigher-sizedchannelisthenmappedforsingle-channel

operation.

• 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.

- Formoredetails,refertotheMicrosoft® support site at http://support.microsoft.

com/kb/929605/en-us.

• ThismotherboarddoesnotsupportDIMMsmadeupof512Mb(64MB)chipsorless.

1.4 System memory

1.4.1 Overview

ThismotherboardcomeswithtwoDoubleDataRate3(DDR3)DualInlineMemoryModules

(DIMM)sockets.

ADDR3modulehasthesamephysicaldimensionsasaDDR2DIMMbutisnotched

differentlytopreventinstallationonaDDR2DIMMsocket.DDR3modulesaredevelopedfor

better performance with less power consumption.

ThegureillustratesthelocationoftheDDR3DIMMsockets:

Channel Sockets

ChannelA DIMM_A1

ChannelB DIMM_B1

M5A78L-M LE/USB3

M5A78L-M LE/USB3 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_B1

ASUS M5A78L-M LE/USB3 1-9

• 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2.4 Advanced menu for manual memory

frequencyadjustment.

• Forsystemstability,useamoreefcient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.

1.4.3 Installing a DIMM

1-10 Chapter 1: Product introduction

1.5 Expansion 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.

1.5.1 Installing 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rmly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.

1.5.2 Conguringanexpansioncard

Afterinstallingtheexpansioncard,congure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,conictswillarisebetweenthetwoPCI

groups,makingthesystemunstableandthecardinoperable.

To remove a DIMM

ASUS M5A78L-M LE/USB3 1-11

1.5.3 PCI slot

ThePCIslotsupportscardssuchasaLANcard,SCSIcard,USBcard,andothercardsthat

complywithPCIspecications.

1.5.4 PCI Express 2.0 x1 slot

ThismotherboardsupportsPCIExpressx1networkcards,SCSIcards,andothercardsthat

complywiththePCIExpressspecications.

1.5.5 PCI Express x16 slot

ThismotherboardsupportsPCIExpressx16networkcards,SCSIcards,andothercardsthat

complywiththePCIExpressspecications.

IRQ assignments for this motherboard

A B C D E F G H

PCIEx16_1 – – shared – – – – –

PCIEx1_1 – shared – – – – – –

PCI1slot – – – – shared – – –

RealtekLANcontroller shared – – – – – – –

HDaudio shared – – – – – – –

OnChipSATA – – – – – – shared –

OnChipOHCI1 shared – – – – – – –

OnChipOHCI2 – – shared – – – – –

ASM1042A – – – shared – – – –

1-12 Chapter 1: Product introduction

1.6 Headers

Clear RTC RAM (2-pin CLRTC)

Thisheader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

+3V_BAT

GND

PIN 1

M5A78L-M LE/USB3

M5A78L-M LE/USB3 Clear RTC RAM

To erase the RTC RAM:

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

2. Useametalobjectsuchasascrewdrivertoshortthetwopins.

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re-

enter data.

• 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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.

ASUS M5A78L-M LE/USB3 1-13

1.7 Connectors

1.7.1 Rear panel connectors

8 710 9

1. PS/2 keyboard/mouse combo port.ThisportisforaPS/2keyboard/mouse.

2. Video Graphics Adapter (VGA) port. This15-pinportisforaVGAmonitororother

VGA-compatibledevices.

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

through a network hub.

Activity/Link LED Speed LED

Status Description Status Description

OFF Nolink OFF 10Mbpsconnection

ORANGE Linked ORANGE 100Mbpsconnection

BLINKING Dataactivity GREEN 1Gbpsconnection LAN port

SPEED

LED

ACT/LINK

LED

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2.1,4.1,

5.1,and7.1-channelcongurations,thefunctionofthisportbecomesFrontSpeaker

Out.

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

Refertotheaudiocongurationtablebelowforthefunctionoftheaudioportsin2.1,4.1,

5.1or7.1-channelconguration.

LAN port LED indications

1-14 Chapter 1: Product introduction

7. USB 2.0 ports 1 and 2.Thesetwo4-pinUniversalSerialBus(USB)portsareforUSB

2.0/1.1devices.

8. USB 3.0 ports 1 and 2.Thesetwo9-pinUniversalSerialBus(USB)portsconnectto

USB3.0/2.0devices.

• 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.

• ThepluggedUSB3.0devicemayrunonxHCIorEHCImode,dependingonthe

operating system’s setting.

• 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.

9. 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isn’tcompatiblewithDVI-I.

10. Serial port (COM).Thisportconnectsamodem,orotherdevicesthatconformwith

serialspecication.

11. USB 2.0 ports 3 and 4.Thesetwo4-pinUniversalSerialBus(USB)portsareforUSB

2.0/1.1devices.

Tocongurea7.1-channelaudiooutput:

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

output.

Audio2.1,4.1,5.1or7.1-channelconguration

Port Headset

2.1-channel 4.1-channel 5.1-channel 7.1-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

ASUS M5A78L-M LE/USB3 1-15

1.7.2 Internal connectors

1. CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN)

Connectthefancablestothefanconnectorsonthemotherboard,ensuringthatthe

black wire of each cable matches the ground pin of the connector.

• TheCPU_FANconnectorsupportsaCPUfanofmaximum2A(24W)fanpower.

• Onlythe4-pinCPUfansupporttheASUSFanXpertfeature.

DONOTforgettoconnectthefancablestothefanconnectors.Insufcientairowinside

thesystemmaydamagethemotherboardcomponents.Thesearenotjumpers!DONOT

place jumper caps on the fan connectors.

CPU_FAN

CHA_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

M5A78L-M LE/USB3

M5A78L-M LE/USB3 Fan connectors

GND

+12V

FANIN

1-16 Chapter 1: Product introduction

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

TheseconnectorsareforanATXpowersupply.Theplugsfromthepowersupplyare

designedtottheseconnectorsinonlyoneorientation.Findtheproperorientationand

pushdownrmlyuntiltheconnectorscompletelyt.

•

WerecommendthatyouuseanATX12VSpecication2.0-compliantpowersupply

unit(PSU)withaminimumof300Wpowerrating.ThisPSUtypehas24-pinand4-pin

power plugs.

•

IfyouintendtouseaPSUwith20-pinand4-pinpowerplugs,ensurethatthe20-pin

powerplugcanprovideatleast15Aon+12VandthatthePSUhasaminimum

powerratingof300W.Thesystemmaybecomeunstableormaynotbootupifthe

powerisinadequate.

•

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conguring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.

M5A78L-M LE/USB3 ATX power connectors

EATXPWR

PIN 1

GND

+5 Volts

-5 Volts

GND

PSON#

GND

-12 Volts

+3 Volts

+12 Volts

+5V Standby

Power OK

GND

+5 Volts

GND

+5 Volts

GND

+3 Volts

ATX12V

PIN 1

+12V DC

GND

M5A78L-M LE/USB3

ASUS M5A78L-M LE/USB3 1-17

3. Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~4)

TheseconnectorsarefortheSerialATA3.0Gb/ssignalcablesforSerialATAhard

diskdrivesandopticaldiscdrives.IfyouinstalledSerialATAharddiskdrives,you

cancreateaRAID0,RAID1,RAID10andJBODcongurationthroughtheonboard

controller.

• TheseconnectorsaresettoIDEmodebydefault.IfyouintendtocreateaSerialATA

RAIDsetusingtheseconnectors,setthetypeoftheSATAconnectorsintheBIOSto

[RAID].Seesection2.3.4SATAConguration for details.

• YoumustinstallWindows®XPServicePack3orlaterversionbeforeusingSerial

ATAharddiskdrives.TheSerialATARAIDfeatureisavailableonlyifyouareusing

Windows®XPSP3orlaterversion.

• Whenusinghot-plugandNCQ,setthetypeoftheSATAconnectorsintheBIOSto

[AHCI].Seesection2.3.4SATAConguration for details.

SATA3G_1

GND

RSATA_RXP1

RSATA_RXN1

GND

RSATA_TXN1

RSATA_TXP1

GND

SATA3G_2

GND

RSATA_RXP2

RSATA_RXN2

GND

RSATA_TXN2

RSATA_TXP2

GND

SATA3G_3

GND

RSATA_RXP3

RSATA_RXN3

GND

RSATA_TXN3

RSATA_TXP3

GND

SATA3G_4

GND

RSATA_RXP4

RSATA_RXN4

GND

RSATA_TXN4

RSATA_TXP4

GND

M5A78L-M LE/USB3 SATA 3.0Gb/s connectors

M5A78L-M LE/USB3

4. Speaker connector (4-pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warning speaker. The speaker

allows you to hear system beeps and warnings.

M5A78L-M LE/USB3

M5A78L-M LE/USB3 Speaker Out connector

+5V

GND

Speaker Out

SPEAKER

PIN 1

1-18 Chapter 1: Product introduction

5. System panel connector (10-1 pin F_PANEL)

Thisconnectorsupportsseveralchassis-mountedfunctions.

M5A78L-M LE/USB3

PIN 1

PWR BTN

PWR_LED+

PWR_LED-

PWR

GND

HDD_LED+

HDD_LED-

Ground

HWRST#

(NC)

F_PANEL

+PWR LED

+HDD_LED RESET

M5A78L-M LE/USB3 System panel connector

• SystempowerLED(2-pin+PWR_LED)

This2-pinconnectorisforthesystempowerLED.ConnectthechassispowerLED

cabletothisconnector.ThesystempowerLEDlightsupwhenyouturnonthesystem

power,andblinkswhenthesystemisinsleepmode.

•

HarddiskdriveactivityLED(2-pin+HDD_LED)

This2-pinconnectorisfortheHDDActivityLED.ConnecttheHDDActivityLEDcable

tothisconnector.TheHDLEDlightsuporasheswhendataisreadfromorwrittento

theHDD.

•

ATX power button/soft-off button (2-pin PWR_BTN)

This 2-pin connector is for the system power button.

•

Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system reboot without

turning off the system power.

ASUS M5A78L-M LE/USB3 1-19

• Werecommendthatyouconnectahigh-denitionfrontpanelaudiomoduletothis

connectortoavailofthemotherboardhigh-denitionaudiocapability.

• Ifyouwanttoconnectahighdenitionfrontpanelaudiomoduletothisconnector,set

the Azalia Front PanelitemintheBIOSto[HD].Seesection2.4.4 Onboard Devices

Conguration for details.

• ThefrontpanelaudioI/Omoduleispurchasedseparately.

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

Thisconnectorisforachassis-mountedfrontpanelaudioI/Omodulethatsupports

eitherHighDenitionAudioorAC`97audiostandard.Connectoneendofthefront

panelaudioI/Omodulecabletothisconnector.

M5A78L-M LE/USB3

M5A78L-M LE/USB3 Front panel audio connector

AAFP

PIN 1

AGND

SENSE1_RETUR

SENSE2_RETUR

PORT1 L

PORT1 R

PORT2 R

SENSE_SEND

PORT2 L

HD-audio-compliant

pin definition

PIN 1

AGND

MIC2

MICPWR

Line out_R

Line out_L

Legacy AC’97

compliant definition

7. USB 2.0 connectors (10-1 pin USB56, USB78)

TheseconnectorsareforUSB2.0ports.ConnecttheUSBmodulecabletoanyof

theseconnectors,theninstallthemoduletoaslotopeningatthebackofthesystem

chassis.TheseUSBconnectorscomplywithUSB2.0specicationthatsupportsupto

480Mbpsconnectionspeed.

Neverconnecta1394cabletotheUSBconnectors.Doingsowilldamagethe

motherboard!

TheUSB2.0moduleispurchasedseparately.

M5A78L-M LE/USB3

M5A78L-M LE/USB3 USB2.0 connectors

PIN 1

USB+5V

USB_P7-

USB_P7+

GND

USB+5V

USB_P8-

USB_P8+

GND

USB78

PIN 1

USB+5V

USB_P5-

USB_P5+

GND

USB+5V

USB_P6-

USB_P6+

GND

USB56

1-20 Chapter 1: Product introduction

1.8.2 Support DVD information

TheSupportDVDthatcomeswiththemotherboardpackagecontainsthedrivers,software

applications,andutilitiesthatyoucaninstalltoavailallmotherboardfeatures.

ThecontentsoftheSupportDVDaresubjecttochangeatanytimewithoutnotice.Visitthe

ASUSwebsiteatwww.asus.com for updates.

To run the Support DVD

PlacetheSupportDVDintotheopticaldrive.IfAutorunisenabledinyourcomputer,theDVD

automaticallydisplaystheSpecialsscreen.ClickDrivers,Utilities,MakeDisk,Manual,and

Contacttabstodisplaytheirrespectivemenus.

The following screen is for reference only.

Click an item to install

Click an icon to display

Support DVD/motherboard

information

IfAutorunisNOTenabledonyourcomputer,browsethecontentsoftheSupportDVDto

locatetheleASSETUP.EXEfromtheBINfolder.Double-clicktheASSETUP.EXEtorun

theDVD.

1.8 Software support

1.8.1 Installing an operating system

Thismotherboardsupports32bit/64bitWindows®XP,32bit/64bitWindows®7Operating

Systems(OS).AlwaysinstallthelatestOSversionandcorrespondingupdatestomaximize

the features of your hardware.

• Motherboardsettingsandhardwareoptionsvary.RefertoyourOSdocumentationfor

detailed information.

• EnsurethatyouinstallWindows®XPServicePack3orlaterversionsbeforeinstalling

thedriversforbettercompatibilityandsystemstability.

ASUS M5A78L-M LE/USB3 2-1

2.1 Managing and updating your BIOS

Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to

restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update

utility.

2.1.1 ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the motherboard

BIOS in Windows® environment.

• ASUS Update requires an Internet connection either through a network or an Internet

Service Provider (ISP).

• This utility is available in the support DVD that comes with the motherboard package.

Installing ASUS Update

To install ASUS Update:

1. Place the support DVD in the optical drive. The Specials menu appears.

2. Click the Utilities tab, then click AI Suite II.

3. Follow the onscreen instructions to complete the installation.

Quit all Windows® applications before you update the BIOS using this utility.

Updating the BIOS

To update the BIOS:

1. From the Windows® desktop, click Start > Programs > ASUS > AI Suite II > AI Suite

II X.XX.XX to launch the AI Suite II utility. The AI Suite II Quick Bar appears.

2. Click Update button from the Quick Bar, and then click ASUS Update from the popup

menu. The ASUS Update main screen appears. From the list, select either of the

following methods:

BIOS information

2-2 Chapter 2: BIOS information

Updating from the Internet

a. Select Update BIOS from the Internet, then click Next.

b. Select the ASUS FTP site nearest you to avoid network trafc, then click Next.

c. From the FTP site, select the BIOS version that you wish to download then click

Next.

The ASUS Update utility is capable of updating itself through the Internet. Always update

the utility to avail all its features.

Updating from a BIOS file

a. Select Update BIOS from le, then click Next.

b. Locate the BIOS le from the Open window, then click Open.

3. Follow the onscreen instructions to complete the updating process.

To update the BIOS using EZ Flash 2:

1. Insert the USB ash disk that contains the latest BIOS le to the USB port, then launch

EZ Flash 2 in either of these two ways:

• Press <Alt> + <F2> during POST.

• Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and

press <Enter> to enable it.

Press <Tab> to switch between drives until the correct BIOS le is found.

2. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update process

and automatically reboots the system when done.

2.1.2 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS‑based

utility.

Before you start using this utility, download the latest BIOS le from the ASUS website at

www.asus.com.

• This function supports USB ash disks with FAT 32/16 format and single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent system boot

failure!

ASUS M5A78L-M LE/USB3 2-3

2.1.3 ASUS CrashFree BIOS 3

ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le

when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS

le using the motherboard support DVD or a USB ash drive that contains the updated BIOS

le.

• Before using this utility, rename the BIOS le in the USB ash drive into

MA78LMU3.ROM.

• Download the latest BIOS le from the ASUS website at www.asus.com.

Recovering the BIOS

To recover the BIOS:

1. Turn on the system.

2. Insert the support DVD to the optical drive or the USB ash drive that contains the

BIOS le to the USB port.

3. The utility automatically checks the devices for the BIOS le. When found, the utility

reads the BIOS le and starts ashing the corrupted BIOS le.

4. Turn off the system after the utility completes the updating process and turn on again.

DO NOT shut down or reset the system while updating the BIOS! Doing so can cause

system boot failure!

Ensure to load the BIOS default settings to ensure system compatibility and stability. Select

the Load Setup Defaults item under the Exit menu. Refer to section 2.8 Exit menu for

details.

2-4 Chapter 2: BIOS information

2.2 BIOS setup program

Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS

screens include navigation keys and brief online help to guide you in using the BIOS Setup

program.

Entering BIOS Setup at startup

To enter BIOS Setup at startup:

• Press <Delete> during the Power‑On Self‑Test (POST). If you do not press <Delete>,

POST continues with its routines.

Entering BIOS Setup after POST

To enter BIOS Setup after POST:

• Press <Ctrl>+<Alt>+<Delete> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on. Do this option only if you

failed to enter BIOS Setup using the rst two options.

Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force

reset from a running operating system can cause damage to your data or system. We

recommend that you always shut down the system properly from the operating system.

• The default BIOS settings for this motherboard apply to most conditions to ensure

optimum performance. If the system becomes unstable after changing any BIOS

settings, load the default settings to ensure system compatibility and stability. Select the

Load Setup Defaults item under the Exit menu. See section 2.8 Exit Menu.

• The BIOS setup screens in this chapter are for reference only. They may not exactly

match what you see on your screen.

• Visit the ASUS website at www.asus.com to download the latest BIOS le for this

motherboard.

ASUS M5A78L-M LE/USB3 2-5

2.2.1 BIOS menu screen

2.2.2 Menu bar

The menu bar on top of the screen has the following main items:

Main For changing the basic system conguration

Advanced For changing the advanced system settings

Power For changing the advanced power management (APM) conguration

Boot For changing the system boot conguration

Tools For conguring options for special functions

Exit For selecting the exit options and loading default settings.

To select an item on the menu bar, press the right or left arrow key on the keyboard until the

desired item is highlighted.

2.2.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for that particular menu.

Use the navigation keys to select items in the menu and change the settings.

Menu items

Select Screen

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

Use [ENTER], [TAB]

or [SHIFT-TAB] to

select a eld.

Use [+] or [-] to

congure system

Time.

System Time [19:34:30]

System Date [Thu 2/20/2014]

SATA3G_1 :[Not Detected]

SATA3G_2 :[Not Detected]

SATA3G_3 :[Not Detected]

SATA3G_4 :[Not Detected]

SATA Conguration

System Information

Main Settings

Menu bar Conguration elds General help

Navigation keys

Submenu items

Some of the navigation keys differ from one screen to another.

Version 0211

2-6 Chapter 2: BIOS information

2.2.4 Menu items

The highlighted item on the menu bar displays the specic items for that menu. For example,

selecting Main shows the Main menu items.

The other items (Advanced, Power, Boot, Tools, and Exit) on the menu bar have their

respective menu items.

2.2.5 Submenu items

A solid triangle before each item on a menu screen means that the item has a submenu. To

display the submenu, select the item and press <Enter>.

2.2.6 Conguration elds

These elds show the values for the menu items. If an item is user‑ congurable, you can

change the value of the eld opposite the item. You cannot select an item that is not

user‑congurable.

A congurable eld is enclosed in brackets, and is highlighted when selected. To change the

value of a eld, select it then press <Enter> to display a list of options. Refer to 2.2.7 Pop-up

window.

2.2.7 Pop-up window

Select a menu item then press

<Enter> to display a pop‑up

window with the conguration

options for that item.

2.2.8 Scroll bar

A scroll bar appears on the right side

of a menu screen when there are

items that do not t on the screen.

Press the <Up> / <Down> arrow

keys or <Page Up> /<Page Down>

keys to display the other items on

the screen.

2.2.9 General help

At the top right corner of the menu screen is a brief description of the selected item.

Select Screen

Select Item

+- Change Field

F1 General Help

F10 Save and Exit

ESC Exit

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

Suspend Mode [Auto]

ACPI 2.0 Support [Enabled]

ACPI APIC support [Enabled]

APM Conguration

Hardware Monitor

Anti Surge Support [Enabled]

Select the ACPI state

used for System

Suspend.

Pop-up window

Scroll bar

Version 0211

Power Settings

Options

S1 (POS) only

S3 only

Auto

ASUS M5A78L-M LE/USB3 2-7

2.3 Main menu

When you enter the BIOS Setup program, the Main menu screen appears, giving you an

overview of the basic system information.

Refer to section 2.2.1 BIOS menu screen for information on the menu screen items and

how to navigate through them.

2.3.1 System Time [xx:xx:xx]

Allows you to set the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

2.3.3 SATA3G_1~4

While entering Setup, the BIOS automatically detects the presence of SATA devices. There

is a separate submenu for each SATA device. Select a device item then press <Enter> to

display the SATA device information.

The BIOS automatically detects the values opposite the dimmed items (Device, LBA/Large

Mode, Block (Multi‑Sector Transfer) Mode, PIO Mode, DMA Mode, SMART monitoring

and 32Bit Data Transfer). These values are not user‑congurable. These items show Not

Detected if no SATA device is installed in the system.

LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting this item to [Auto] enables the LBA mode if the

device supports this mode, and if the device was not previously formatted with LBA mode

disabled. Conguration options: [Disabled] [Auto]

Block (Multi-Sector Transfer) M [Auto]

Enables or disables data multi‑sectors transfers. When this item is set to [Auto], the data

transfer from and to the device occurs multiple sectors at a time if the device supports multi‑

sector transfer feature. When this item is set to [Disabled], the data transfer from and to the

device occurs one sector at a time. Conguration options: [Disabled] [Auto]

Select Screen

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

Use [ENTER], [TAB]

or [SHIFT-TAB] to

select a eld.

Use [+] or [-] to

congure system

Time.

System Time [19:34:30]

System Date [Thu 08/14/2011]

SATA3G_1 :[Not Detected]

SATA3G_2 :[Not Detected]

SATA3G_3 :[Not Detected]

SATA3G_4 :[Not Detected]

SATA Conguration

System Information

Main Settings

Version 0211

2-8 Chapter 2: BIOS information

PIO Mode [Auto]

Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology. Conguration options: [Auto]

[Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32‑bit data transfer. Conguration options: [Disabled] [Enabled]

2.3.4 SATA Conguration

The SATA Conguration menu allows you to congure your storage devices. Select an item

then press <Enter> to display the submenu.

OnChip SATA Channel [Enabled]

Enables or disables the onboard channel SATA port. Conguration options: [Disabled]

[Enabled]

SATA Port1 ‑ Port4 [IDE]

Allows you to set the SATA conguration.

[IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as

Parallel ATA physical storage devices.

[RAID] Set to [RAID] when you want to create a RAID conguration from the SATA

hard disk drives.

[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI

(Advanced Host Controller Interface). The AHCI allows the onboard

storage driver to enable advanced Serial ATA features that increases

storage performance on random workloads by allowing the drive to

internally optimize the order of commands.

2.3.5 System Information

This menu gives you an overview of the general system specications. The BIOS

automatically detects the items in this menu.

BIOS Information

Displays the auto‑detected BIOS information.

Processor

Displays the auto‑detected CPU specication.

System Memory

Displays the auto‑detected system memory.

The following item only appears when you set OnChip SATA Channel to [Enabled].

ASUS M5A78L-M LE/USB3 2-9

2.4 Advanced menu

The Advanced menu items allow you to change the settings for the CPU and other system

devices.

Take caution when changing the settings of the Advanced menu items. Incorrect eld

values can cause the system to malfunction.

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

JumperFree Conguration

CPU Conguration

Chipset

Onboard Devices Conguration

PCIPnP

USB Conguration

Select Screen

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

Adjust System

Frequency/Voltage etc.

Advanced Settings

Version 0211

The following item appears only when you set CPU Overclocking to [Manual].

CPU/HT Reference Clock (MHz) [200]

Sets the CPU/HT Reference Clock. Conguration options: [Min.=200] [Max.=550]

The following item appears only when you set CPU Overclocking to [Overclock Prole].

Overclock Options [Auto]

Selects the overclocking prole. Conguration options: [Auto] [Overclock 2%]

[Overclock 5%] [Overclock 8%] [Overclock 10%]

GPU Overclocking [Auto]

Congures the GPU overclocking. Conguration options: [Auto] [Manual]

The following item appears only when you set GPU Overclocking to [Manual].

GPU Engine Clock [350]

Sets the GPU Engine Clock. Use <+> / <‑> keys to adjust the ratio or input a number

between 200 and 350.

2.4.1 JumperFree Conguration

The items and conguration options in this menu may vary depending on the AMD CPU

type.

CPU OverClocking [Overclock Prole]

Selects the CPU overclocking options to achieve desired CPU internal frequency.

Conguration options: [Manual] [Auto] [Overclock Prole] [Test Mode]

2‑10 Chapter 2: BIOS information

CPU Ratio [Auto]

Sets the CPU ratio. Conguration options:[Auto] [x4.0 800MHz] [x4.5 900MHz] [x5.0

1000MHz] [x5.5 1100MHz] [x6.0 1200MHz] [x6.5 1300MHz] [x7 1400MHz] [x7.5 1500MHz]

[x8.0 1600MHz] [x8.5 1700MHz] [x9 1800MHz] [x9.5 1900MHz] [x10.0 2000MHz] [x10.5

2100MHz] [x11 2200MHz]

CPU/NB Frequency [Auto]

Sets the CPU/Northbridge frequency. Conguration options: [Auto] [840MHz] [1050MHz]

[1260MHz] [1470MHz] [1680MHz] [1890MHz] [2100MHz]]

CPU Over Voltage [Auto]

Sets the CPU over voltage. The valid value ranges vary depending on your CPU model. Use

<+> / <‑> keys to adjust the ratio. Conguration options: [Auto]

VDDNB Over Voltage [Auto]

Sets the VDDNB over voltage. The valid value ranges vary depending on your CPU model.

Use <+> / <‑> keys to adjust the ratio. Conguration options: [Auto]

LoadLine Calibration [Auto]

Sets the LoadLine. Conguration options: [Auto] [0%] [3.225%] [6.450%] [9.675%] [12.90%] ~

[87.075%] [90.3%] [93.525%] [96.75%] [100%]

If the system becomes unstable after changing the setting, set it back to [Auto] for safe

mode.

HT Link Speed [Auto]

Sets the HyperTransport link speed. Conguration options: [Auto] [200MHz] [400MHz]

[600MHz] [800MHZ] [1000MHz] [1200MHz] [1400MHz] [1600MHz] [1800MHz] [2000MHz]

DRAM Timing Cong [Auto]

Conguration options: [Auto] [Manual]

PCIE Overclocking [Auto]

Congures the PCIE overclocking. Conguration options: [Auto] [Manual]

The following item only appears when you set PCIE Overclocking to [Manual].

PCIE Clock [100]

Sets the PCIE Clock. Use <+> / <‑> keys to adjust the ratio or input a number between

100 and 150.

The following items only appear when you set DRAM Timing Cong to [Manual].

Memory Clock Speed [400MHz]

Selects the memory clock frequency programming method. Conguration options:

[400MHz] [533MHz] [667MHz] [800MHz]

ASUS M5A78L-M LE/USB3 2-11

DRAM Timing Conguration

The conguration options for some of the following items vary depending on the DIMMs you

install on the motherboard.

DRAM CAS# Latency [Auto]

Conguration options: [Auto] [4 CLK] ~ [12 CLK]

DRAM RAS# to CAS# Delay [Auto]

Conguration options: [Auto] [5 CLK] ~ [12 CLK]

DRAM RAS# PRE Time [Auto]

Conguration options: [Auto] [5 CLK] ~ [12 CLK]

DRAM RAS# ACT Time [Auto]

Conguration options: [Auto] [15 CLK] ~ [30 CLK]

DRAM READ to PRE Time [Auto]

Conguration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]

DRAM Row Cycle Time [Auto]

Conguration options: [Auto] [12 CLK] ~ [42 CLK]

DRAM WRITE Recovery Time [Auto]

Conguration options: [Auto] [5 CLK] [6 CLK] [7 CLK] [8 CLK] [10 CLK] [12 CLK]

DRAM RAS# to RAS# Delay [Auto]

Conguration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]

DRAM READ to WRITE Delay [Auto]

Conguration options: [Auto] [3 CLK] ~ [17 CLK]

DRAM WRITE to READ Delay(DD) [Auto]

Conguration options: [Auto] [2 CLK] ~ [10 CLK]

DRAM WRITE to READ Delay(SD) [Auto]

Conguration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]

DRAM WRITE to WRITE Timing [Auto]

Conguration options: [Auto] [2 CLK] ~ [10 CLK]

DRAM READ to READ Timing [Auto]

Conguration options: [Auto] [3 CLK] ~ [10 CLK]

DRAM REF Cycle Time [Auto]

Conguration options: [Auto] [90ns] [110ns] [160ns] [300ns] [350ns]

DRAM Refresh Rate [Auto]

Conguration options: [Auto] [Every 7.8ms] [Every 3.9ms]

DRAM Command Rate [Auto]

Conguration options: [Auto] [1T] [2T]

Memory Voltage [Auto]

Sets the memory voltage. Conguration options: [Auto] [1.350V] [1.500V] [1.650V] [1.800V]

PCI/PCIe CLK Status [Enabled]

Enables or disables clock for PCI/PCIe slot. Conguration options: [Disabled] [Enabled]

2-12 Chapter 2: BIOS information

2.4.2 CPU Conguration

The items in this menu show the CPU‑related information that the BIOS automatically

detects.

GART Error Reporting [Disabled]

This option should remain disabled for the normal operation. The driver developer may

enable it for testing purpose. Conguration options: [Disabled] [Enabled]

Microcode Updation [Enabled]

Enables or disables Microcode Updation. Conguration options: [Disabled] [Enabled]

Secure Virtual Machine Mode [Disabled]

Enables or disables Secure Virtual Machine Mode (SVM). Conguration options: [Disabled]

[Enabled]

Cool ‘n’ Quiet [Enabled]

Enables or disables the AMD® Cool ‘n’ Quiet technology. Conguration options: [Enabled]

[Disabled]

C1E Support [Disabled]

Enables or disables the CPU Enhanced Halt (C1E) function, a CPU power‑saving function

in system halt state. When this item is enabled, the CPU core frequency and voltage will be

reduced during the system halt state to decrease power consumption.

Conguration options: [Disabled] [Enabled]

Advanced Clock Calibration [Disabled]

Adjusts the processor’s overclocking capability. When this item is set to [Auto], the BIOS

automatically adjusts this function. When this item is set to [All Cores], the processor has

the best overclocking performance. When this item is set to [Per Core], the processor’s

overclocking capability is enhanced. Conguration options: [Disabled] [Auto] [All Cores] [Per

Core] [By Hotkey]

The following items appear only when you set Advanced Clock Calibration to [Auto],

[All Cores], or [Per Core].

Unleashing Mode [Disabled]

Enable the Unleashing Mode to get full computing power of the processor. However,

this might make your system unstable depending on your processor’s overclocking

capability. Conguration options: [Enabled] [Disabled]

Active CPU Cores [Auto]

Allows you to manually turn ON/OFF a process core. Conguration options: [Auto]

[Manual]

2nd / 3rd / 4th Core [On]

These items appear only when you set Active CPU Cores to [Manual].

Conguration options: [On] [Off]

Value (All Cores) [-2%]

This item appears only when you set Advanced Clock Calibration to [All Cores]. It

allows you to set the overclocking percentage for all the processor cores as a whole.

Conguration options: [0%] [+2%] [+4%] [+6%] [+8%] [+10%] [+12%] [‑2%] [‑4%]

[‑6%] [‑8%] [‑10%] [‑12%]

ASUS M5A78L-M LE/USB3 2-13

Value (Core 0) / (Core 1) / (Core 2) / (Core 3) [-2%]

These items only appear when you set Advanced Clock Calibration to [Per Core]

and allow you to set the overclocking percentage for each process core separately.

Conguration options: [0%] [+2%] [+4%] [+6%] [+8%] [+10%] [+12%] [‑2%] [‑4%]

[‑6%] [‑8%] [‑10%] [‑12%]

2.4.3 Chipset

NorthBridge Conguration

DRAM Controller Conguration

Bank Interleaving [Auto]

Allows you to enable the bank memory interleaving. Conguration options: [Disabled]

[Auto]

Node Interleaving [Disabled]

Allows you to enable the node memory interleaving. Conguration options: [Disabled]

[Auto]

Channel Interleaving [Auto]

Allows you to enable the channel memory interleaving. Conguration options:

[Disabled] [Auto]

Memory Hole Remapping [Enabled]

Allows you to enable or disable memory remapping around memory hole. Conguration

options: [Disabled] [Enabled]

DCT Unganged Mode [Always]

Allows you to select unganged DRAM mode (64‑bit width). Conguration options:

[Always] [Auto]

Power Down Enable [Disabled]

Allows you to enable or disable DDR power down mode. Conguration options:

[Disabled] [Enabled]

ECC Conguration

ECC Mode [Disabled]

Enables or disables the DRAM ECC that allows the hardware to report and correct

memory errors automatically. Conguration options: [Disabled] [Basic] [Good] [Super]

[Max] [User]

DRAM ECC Enable [Enabled]

This item appears only when you set ECC Mode to [User] and allows hardware to

report and correct memory errors automatically maintaining system integrity.

Internal Graphics

Primary Video Controller [GFX0-GPP-IGFX-PCI]

Selects the primary display adapter. Conguration options: [GFX0‑GPP‑IGFX‑PCI] [GPP‑

GFX0‑IGFX‑PCI] [PCI‑GFX0‑GPP‑IGFX] [IGFX‑GFX0‑GPP‑PCI]

GFX0: primary video controller on a PCIe x16 slot

GPP: primary video controller on a PCIe x1 slot

IGFX: onboard display output port

PCI: primary video controller on a PCI slot

2-14 Chapter 2: BIOS information

2.4.4 Onboard Devices Conguration

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address. Conguration options: [Disabled]

[3F8/IRQ4][2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

HDAudio Controller [Enabled]

Enables or disables the high denition audio controller. Conguration options: [Disabled]

[Enabled]

Front Panel Select [HD Audio]

This item appears only when you set the previous item to [Enabled]. Conguration

options: [AC97] [HD Audio]

OnBoard LAN Controller [Enabled]

Conguration options: [Disabled] [Enabled]

OnBoard LAN Boot ROM [Disabled]

This item appears only when you set the previous item to [Enabled]. Conguration

options: [Disabled] [Enabled]

USB 3.0 Controller [Enabled]

Allows you to enable or disable the USB 3.0 controller. Conguration options: [Disabled]

[Enabled]

Surround View [Auto]

Disables or enables the Surround View function. Conguration options: [Auto] [Disabled]

[Enabled]

Frame Buffer Location [Above 4G]

Conguration options: [Below 4G] [Above 4G]

This item becomes user‑congurable when you install an ATI graphics card into the

PCIe x16 slot.

• The [512MB] option only appears when you install 1GB system memory or more.

• The [1GB] option only appears when you install 2GB system memory or more.

UMA Frame Buffer Size [Auto]

Selects the UMA frame buffer size. Conguration options: [Auto] [32MB] [64MB]

[128MB] [256MB] [512MB]

ASUS M5A78L-M LE/USB3 2-15

2.4.6 USB Conguration

The items in this menu allows you to change the USB‑related features. Select an item then

press <Enter> to display the conguration options.

The Module Version and USB Devices Enabled items show the auto‑detected values. If

no USB device is detected, the item shows None.

USB Functions [Enabled]

Allows you to enable or disable the USB functions. Conguration options: [Disabled]

[Enabled]

The following items appear only when you set USB Functions to [Enabled].

USB 2.0 Controller [Enabled]

Enables or disables USB 2.0 Controllers. Conguration options: [Disabled] [Enabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for Legacy USB storage devices, including USB ash

drives and USB hard drives. Setting to Auto allows the system to detect the presence of USB

devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device

is detected, the legacy USB support is disabled. Conguration options: [Disabled] [Enabled]

[Auto]

Plug and Play O/S [No]

When this item is set to [No], BIOS congures all the devices in the system. When this item

is set to [Yes] and if you install a Plug and Play operating system, the operating system

congures the Plug and Play devices not required for boot. Conguration options: [No] [Yes]

2.4.5 PCIPnP

The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.

The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA

devices, and setting the memory size block for legacy ISA devices.

Take caution when changing the settings of the PCI PnP menu items. Incorrect eld values

can cause the system to malfunction.

2-16 Chapter 2: BIOS information

2.5 Power menu

The Power menu items allow you to change the settings for the Advanced Conguration and

Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then

press <Enter> to display the conguration options.

2.5.1 Suspend Mode [Auto]

Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be used

for system suspend. Conguration options: [S1 (POS) Only] [S3 Only] [Auto]

2.5.2 ACPI 2.0 Support [Enabled]

Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI) 2.0

support. Conguration options: [Disabled] [Enabled]

2.5.3 ACPI APIC Support [Enabled]

Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI)

support in the Advanced Programmable Interrupt Controller (APIC). When set to Enabled, the

ACPI APIC table pointer is included in the RSDT pointer list. Conguration options: [Disabled]

[Enabled]

2.5.4 APM Conguration

Restore on AC Power Loss [Power Off]

When this item is set to [Power Off], the system goes into off state after an AC power loss.

When this item is set to [Power On], the system goes on after an AC power loss. When this

item set to [Last State], the system goes into either off or on state, whatever the system

state was before the AC power loss. Conguration options: [Power Off] [Power On] [Last

State]

Power on From S5 By PME# [Disabled]

Enables or disables PME wake from sleep states. Conguration options: [Disabled] [Enabled]

Power on From S5 By Ring [Disabled]

Enables or disables ring to generate a wake event. Conguration options: [Disabled]

[Enabled]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

Suspend Mode [Auto]

ACPI 2.0 Support [Enabled]

ACPI APIC Support [Enabled]

APM Conguration

HW Monitor Conguration

Anti Surge Support [Enabled]

Select the ACPI state

used for System

Suspend.

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

Power Settings

Version 0211

ASUS M5A78L-M LE/USB3 2-17

2.5.5 HW Monitor Conguration

CPU Temperature [xxxºC/xxxºF] or [Ignored]

MB Temperature [xxxºC/xxxºF] or [Ignored]

The onboard hardware monitor automatically detects and displays the motherboard and CPU

temperatures. Select Ignored if you do not wish to display the detected temperatures.

CPU / Chassis Fan Speed [N/A], [xxxxRPM], or [Ignored]

The onboard hardware monitor automatically detects and displays the CPU / Chassis fan

speeds in rotations per minute (RPM). If the fan is not connected to the motherboard, the eld

shows N/A. Select [gnored] if you do not want the detected speed to be displayed.

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage [xx.xxxV] or [Ignored]

The onboard hardware monitor automatically detects the voltage output through the onboard

voltage regulators.

CPU Q-Fan Function [Enabled]

Enables or disables the ASUS Q‑Fan feature that smartly adjusts the CPU fan speeds for

more efcient system operation. Conguration options: [Disabled] [Enabled]

Power on By PS/2 Keyboard [Disabled]

Enables or disables PS/2 Keyboard to generate a wake event. Conguration options:

[Disabled] [Space Bar] [Power Key] [Ctrl‑Esc]

Power on From S5 By RTC Alarm [Disabled]

Enables or disables RTC to generate a wake event. Conguration options: [Disabled]

[Enabled]

The following items appear only when you set CPU Q-Fan Function to [Enabled].

CPU Fan Speed Low Limit [200 RPM]

Allows you to manually set a lower limit for the CPU fan speed. If the CPU fan speed is

below the specied limit, the system sends out warning beeps. Conguration options:

[600 RPM] [500 RPM] [400 RPM] [300 RPM] [200 RPM] [Ignored]

CPU Q‑Fan Mode [Standard]

Allows you to set the appropriate performance level of the CPU fan.

[Standard] Sets to [Standard] to make the CPU fan automatically adjust depending

on the CPU temperature.

[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.

[Turbo] Set to [Turbo] to achieve maximum CPU fan speed.

[Manual] Allows you to individually set the CPU fan parameters.

The following four items appear only when you set CPU Q-Fan Mode to [Manual].

CPU Upper Temperature [70oC/158oF]

Allows you to select the CPU upper temperature. Conguration options: [30oC/86oF]

[40oC/104oF] [50oC/122oF] [60oC/140oF] [70oC/158oF] [80oC/176oF] [90oC/194oF]

2-18 Chapter 2: BIOS information

CPU Fan Max. Duty Cycle(%) [100%]

Allows you to select the maximum CPU fan duty cycle. When the CPU temperature

reaches the upper limit, the CPU fan will operate at the maximum duty cycle. Congu-

ration options: [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%].

CPU Lower Temperature [20oC/68oF]

Displays the lower limit of the CPU temperature.

CPU Fan Min. Duty Cycle(%) [20%]

Allows you to select the minimum CPU fan duty cycle. When the CPU temperature is

under 40ºC, the CPU fan will operate at the minimum duty cycle. Conguration options:

[00%] [10%] [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%].

2.5.6 Anti Surge Support [Enabled]

Allows you to enable or disable the Anti‑Surge protection feature. Conguration options:

[Disabled] [Enabled]

ASUS M5A78L-M LE/USB3 2-19

2.6 Boot menu

The Boot menu items allow you to change the system boot options. Select an item then

press <Enter> to display the submenu.

Select Screen

Select Item

Enter Go to Sub

Screen

F1 General Help

F10 Save and Exit

ESC Exit

Boot Settings Conguration

Security

Species the Boot

Device Priority

sequence.

A virtual oppy disk

drive (Floppy Drive B:)

may appear when you set

the CD-ROM drive as the

rst boot device.

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

Boot Device Priority

Boot Settings

2.6.1 Boot Device Priority

1st ~ xxth Boot Device

These items specify the boot device priority sequence from the available devices. The

number of device items that appears on the screen depends on the number of devices

installed in the system. Conguration options: [Removable Dev.] [Hard Drive]

[ATAPI CD‑ROM] [Disabled]

• To select the boot device during system startup, press <F8> when ASUS logo appears.

• To access Windows OS in Safe Mode, press <F8> after POST.

2.6.2 Boot Settings Conguration

Quick Boot [Enabled]

Enabling this item allows the BIOS to skip some power on self tests (POST) while booting

to decrease the time needed to boot the system. When this item is set to [Disabled], BIOS

performs all the POST items. Conguration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]

Enables or disables the full screen logo display feature. Conguration options: [Disabled]

[Enabled]

Set this item to [Enabled] to use the ASUS MyLogo2™ feature.

Version 0211

2‑20 Chapter 2: BIOS information

AddOn ROM Display Mode [Force BIOS]

Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Current]

Bootup Num-Lock [On]

Selects the power‑on state for the NumLock. Conguration options: [Off] [On]

Wait for ‘F1’ If Error [Enabled]

When this item is set to [Enabled], the system waits for the F1 key to be pressed when error

occurs. Conguration options: [Disabled] [Enabled]

2.6.3 Security

The Security menu items allow you to change the system security settings. Select

an item then press <Enter> to display the conguration options.

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor Password item

on top of the screen shows the default Not Installed. After you set a password, this item

shows Installed.

To set a Supervisor Password:

1. Select the Change Supervisor Password item and press <Enter>.

2. On the password box, key in a password containing up to six letters, or numbers, or

both, then press <Enter>.

3. Conrm the password when prompted.

The message Password Installed appears after you successfully set your password.

To change the supervisor password, follow the same steps as in setting a supervisor

password.

To clear the supervisor password, select the Change Supervisor Password then press

<Enter> twice. The message Password uninstalled appears.

If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock

(RTC) RAM. See section 1.6 Headers for information on how to erase the RTC RAM.

ASUS M5A78L-M LE/USB3 2-21

After you have set a supervisor password, the other items appear to allow you to change

other security settings.

User Access Level [Full Access]

This item allows you to select the access restriction to the Setup items. Conguration options:

[No Access] [View Only] [Limited] [Full Access]

No Access prevents user access to the Setup utility.

View Only allows access but does not allow change to any eld.

Limited allows changes only to selected elds, such as Date and Time.

Full Access allows viewing and changing all the elds in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on top of the

screen shows the default Not Installed. After you set a password, this item shows Installed.

To set a User Password:

1. Select the Change User Password item and press <Enter>.

2. On the password box, key in a password containing up to six letters, or numbers, or

both, then press <Enter>.

3. Conrm the password when prompted.

The message “Password Installed” appears after you set your password successfully.

To change the user password, follow the same steps as in setting a user password.

Clear User Password

Select this item to clear the user password.

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup utility. When

set to [Always], BIOS checks for user password both when accessing Setup and booting the

system. Conguration options: [Setup] [Always]

2-22 Chapter 2: BIOS information

2.7 Tools menu

The Tools menu items allow you to congure options for special functions. Select an item

then press <Enter> to display the sub‑menu.

Select Screen

Select Item

Enter Go to Sub

Screen

F1 General Help

F10 Save and Exit

ESC Exit

Press ENTER to run

the utility to select

and update BIOS. This

utility supports:

1.FAT 12/16/32 (r/w)

2.NTFS (read only)

3.CD-DISC (read only)

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit

2.7.1 ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message

appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to

conrm your choice. See section 2.1.2 for details.

Version 0211

ASUS EZ Flash 2

ASUS O.C. Prole

Tools Settings

2.7.2 ASUS O.C. Prole

This item allows you to store or load multiple BIOS settings.

Add Your CMOS Prole

Allows you to save the current BIOS le to the BIOS Flash. In the Name sub‑item, key in

your prole name and press <Enter>, and then choose a prole number to save your CMOS

settings in the Save to sub‑item.

Load CMOS Proles.

Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter> to

load the le.

Start O.C. Prole

Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility.

• This function can support devices such as a USB ash disk with FAT 32/16 format and

single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent the system

boot failure!

• We recommend that you update the BIOS le only coming from the same memory/CPU

conguration and BIOS version.

• Only the CMO le can be loaded.

ASUS M5A78L-M LE/USB3 2-23

Exit & Discard Changes

Select this option only if you do not want to save the changes that you made to the Setup

program. If you made changes to elds other than System Date, System Time, and

Password, the BIOS asks for a conrmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the previously saved

values. After selecting this option, a conrmation appears. Select OK to discard any changes

and load the previously saved values.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the Setup

menus. When you select this option or if you press <F5>, a conrmation window appears.

Select OK to load default values. Select Exit & Save Changes or make other changes

before saving the values to the non‑volatile RAM.

Exit & Save Changes

Once you are nished making your selections, choose this option from the Exit menu to

ensure the values you selected are saved to the CMOS RAM. An onboard backup battery

sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this

option, a conrmation window appears. Select OK to save changes and exit.

2.8 Exit menu

The Exit menu items allow you to load the optimal or failsafe default values for the BIOS

items, and save or discard your changes to the BIOS items.

Pressing <Esc> does not immediately exit this menu. Select one of the options from this

menu or <F10> from the legend bar to exit.

Exit Options

Exit & Save Changes

Exit & Discard Changes

Discard Changes

Load Setup Defaults

Exit system setup

after saving the

cahnges.

F10 key can be used

for this operation.

M5A78L-M LE/USB3 BIOS Setup

Main Advanced Power Boot Tools Exit Version 0211

2-24 Chapter 2: BIOS information

ASUS M5A78L-M LE/USB3 A-1

Appendices

Notices

Federal Communications Commission Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions:

• This device may not cause harmful interference.

• This device must accept any interference received including interference that may cause

undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This

equipment generates, uses and can radiate radio frequency energy and, if not installed

and used in accordance with manufacturer’s instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not occur

in a particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and on, the user

is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver is

connected.

• Consult the dealer or an experienced radio/TV technician for help.

The use of shielded cables for connection of the monitor to the graphics card is required

toassurecompliancewithFCCregulations.Changesormodicationstothisunitnot

expressly approved by the party responsible for compliance could void the user’s authority

to operate this equipment.

Appendices

A-2 Appendices

IC: Canadian Compliance Statement

ComplieswiththeCanadianICES-003ClassBspecications.ThisdevicecomplieswithRSS

210 of Industry Canada. This Class B device meets all the requirements of the Canadian

interference-causing equipment regulations.

This device complies with Industry Canada license exempt RSS standard(s). Operation is

subject to the following two conditions: (1) this device may not cause interference, and (2)

this device must accept any interference, including interference that may cause undesired

operation of the device.

Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.

Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le

matériel brouilleur du Canada.

Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le

fonctionnement est soumis aux deux conditions suivantes :

(1) cet appareil ne doit pas provoquer d’interférences et

(2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer

un fonctionnement non souhaité de l’appareil.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class B limits for radio noise emissions from

digital apparatus set out in the Radio Interference Regulations of the Canadian Department

of Communications.

This class B digital apparatus complies with Canadian ICES-003.

VCCI: Japan Compliance Statement

VCCI Class B Statement

This is a Class B product based on the standard of the VCCI Council. If this is used near a

radio or television receiver in a domestic environment, it may cause radio interference. Install

and use the equipment according to the instruction manual.

KC: Korea Warning Statement

ASUS M5A78L-M LE/USB3 A-3

REACH

Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of

Chemicals) regulatory framework, we published the chemical substances in our products at

ASUS REACH website at http://csr.asus.com/english/REACH.htm.

DO NOT throw the motherboard in municipal waste. This product has been designed to

enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin

indicates that the product (electrical and electronic equipment) should not be placed in

municipal waste. Check local regulations for disposal of electronic products.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol

of the crossed out wheeled bin indicates that the battery should not be placed in municipal

waste.

ASUS Recycling/Takeback Services

ASUS recycling and takeback programs come from our commitment to the highest standards

for protecting our environment. We believe in providing solutions for you to be able to

responsibly recycle our products, batteries, other components as well as the packaging

materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling

information in different regions.

Google™ License Terms

LicensedundertheApacheLicense,Version2.0(the“License”);youmaynotusethisle

except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the

License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF

ANY KIND, either express or implied.

SeetheLicenseforthespeciclanguagegoverningpermissionsandlimitationsunderthe

License.

A-4 Appendices

Português A AsusTek Inc. declara que este dispositivo está em

conformidade com os requisitos essenciais e outras disposições relevantes

das Diretivas da CE. Para mais detalhes, consulte a Declaração de

Conformidade CE.

Română Prin prezenta, AsusTek Inc. declară faptul că acest dispozitiv

respectă cerinţele esenţiale şi alte prevederi relevante ale directivelor CE.

Pentru mai multe detalii, consultaţi declaraţia de conformitate CE.

Srpski AsusTek Inc. ovim izjavljuje da je ovaj uređaj u saglasnosti sa

ključnim zahtevima i drugim relevantnim odredbama CE Direktiva. Molimo

vas, pogledajte CE Deklaraciju o usklađenosti za više detalja.

Slovensky Spoločnosť AsusTek Inc. týmto prehlasuje, že toto zariadenie

vyhovuje príslušným požiadavkám a ďalším súvisiacim ustanoveniam

smerníc ES. Viac podrobností si pozrite v prehlásení o zhode ES.

Slovenščina AsusTek Inc. tukaj izjavlja, da je ta naprava skladna s

temeljnimi zahtevami in drugimi relevantnimi določili direktiv CE. Za več

informacij glejte Izjavo CE o skladnosti.

Español Por la presente, AsusTek Inc. declara que este dispositivo cumple

los requisitos básicos y otras disposiciones relevantes de las directivas

de la CE. Consulte la Declaración de conformidad de la CE para obtener

más detalles.

Svenska AsusTek Inc. förklarar härmed att denna enhet är i

överensstämmelse med de grundläggande kraven och andra relevanta

bestämmelser i CE-direktiven. Se CE-försäkran om överensstämmelse för

mer information.

Українська AsusTek Inc. заявляє, що цей пристрій відповідає основним

вимогам відповідних Директив ЄС. Будь ласка, див. більше подробиць у

Декларації відповідності нормам ЄС.

Türkçe AsusTek Inc., bu aygıtın temel gereksinimlerle ve CE Yönergelerinin

diğer ilgili koşullarıyla uyumlu olduğunu beyan eder. Daha fazla ayrıntı için

lütfen CE Uygunluk Beyanına bakın.

Bosanski AsusTek Inc. ovim potvrđuje da je ovaj uređaj usklađen s

osnovnim zahtjevima i drugim relevantnim propisima Direktiva EK. Za više

informacija molimo pogledajte Deklaraciju o usklađenosti EK.

English AsusTek Inc. hereby declares that this device is in compliance with

the essential requirements and other relevant provisions of CE Directives.

Please see the CE Declaration of Conformity for more details.

Français AsusTek Inc. déclare par la présente que cet appareil est

conforme aux critères essentiels et autres clauses pertinentes des directives

européennes. Veuillez consulter la déclaration de conformité CE pour plus

d’informations.

Deutsch AsusTek Inc. erklärt hiermit, dass dieses Gerät mit den

wesentlichen Anforderungen und anderen relevanten Bestimmungen der

CE-Richtlinien übereinstimmt. Weitere Einzelheiten entnehmen Sie bitte der

CE-Konformitätserklärung.

Italiano AsusTek Inc. con la presente dichiara che questo dispositivo

è conforme ai requisiti essenziali e alle altre disposizioni pertinenti alle

direttive CE. Per maggiori informazioni fate riferimento alla dichiarazione

di conformità CE.

Компания ASUS заявляет, что это устройство соответствует основным

требованиям и другим соответствующим условиям европейских

директив. Подробную информацию, пожалуйста, смотрите в декларации

соответствия.

Български С настоящото AsusTek Inc. декларира, че това устройство

е в съответствие със съществените изисквания и другите приложими

постановления на директивите CE. Вижте CE декларацията за

съвместимост за повече информация.

Hrvatski AsusTek Inc. ovim izjavljuje da je ovaj uređaj sukladan s bitnim

zahtjevima i ostalim odgovarajućim odredbama CE direktiva. Više

pojedinosti potražite u CE izjavi o sukladnosti.

Čeština Společnost AsusTek Inc. tímto prohlašuje, že toto zařízení

splňuje základní požadavky a další příslušná ustanovení směrnic CE. Další

podrobnosti viz Prohlášení o shodě CE.

Dansk AsusTek Inc. Erklærer hermed, at denne enhed er i

overensstemmelse med hovedkravene and andre relevante bestemmelser i

CE-direktiverne. Du kan læse mere i CE-overensstemmelseserklæring.

Nederlands AsusTek Inc. verklaart hierbij dat dit apparaat compatibel

is met de essentiële vereisten en andere relevante bepalingen van CE-

richtlijnen. Raadpleeg de CE-verklaring van conformiteit voor meer details.

Eesti Käesolevaga kinnitab AsusTek Inc., et see seade vastab CE direktiivide

oluliste nõuetele ja teistele asjakohastele sätetele. Vt üksikasju CE

vastavusdeklaratsioonist.

Suomi AsusTek Inc. vakuuttaa täten, että tämä laite on CE-direktiivien

olennaisten vaatimusten ja muiden asiaan kuuluvien lisäysten mukainen.

Katso lisätietoja CE-vaatimustenmukaisuusvakuutuksesta.

Ελληνικά Με το παρόν, η AsusTek Inc. Δηλώνει ότι αυτή η συσκευή

συμμορφώνεται με τις θεμελιώδεις απαιτήσεις και άλλες σχετικές διατάξεις

των Οδηγιών της ΕΕ. Για περισσότερες λεπτομέρειες ανατρέξτε στην

Δήλωση Συμμόρφωσης ΕΕ.

Magyar Az AsusTek Inc. ezennel kijelenti, hogy a készülék megfelel

a CE-irányelvek alapvető követelményeinek és ide vonatkozó egyéb

rendelkezéseinek. További részletekért tekintse meg a CE-megfelelőségi

nyilatkozatot.

Latviski Līdz ar šo AsusTek Inc. paziņo, ka šī ierīce atbilst būtiskajām

prasībām un citiem saistošajiem nosacījumiem, kas norādīti CE direktīvā. Lai

uzzinātu vairāk, skatiet CE Atbilstības deklarāciju.

Lietuvių Šiuo dokumentu bendrovė „AsusTek Inc.“ pareiškia, kad šis

įrenginys atitinka pagrindinius CE direktyvų reikalavimus ir kitas susijusias

nuostatas. Daugiau informacijos rasite CE atitikties deklaracijoje.

Norsk AsusTek Inc. erklærer herved at denne enheten er i samsvar med

hovedsaklige krav og andre relevante forskrifter i CE-direktiver. Du nner

mer informasjon i CE-samsvarserklæringen.

Polski Niniejszym AsusTek Inc. deklaruje, że to urządzenie jest zgodne z

istotnymi wymaganiami oraz innymi powiązanymi zaleceniami Dyrektyw

CE. W celu uzyskania szczegółów, sprawdź Deklarację zgodności CE.

ASUS M5A78L-M LE/USB3 A-5

ASUS contact information

ASUSTeK COMPUTER INC.

Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259

Telephone +886-2-2894-3447

Fax +886-2-2890-7798

E-mail info@asus.com.tw

Web site www.asus.com.com/

Technical Support

Telephone +86-21-38429911

Fax +86-21-5866-8722, ext. 9101#

Online support http://www.asus.com/tw/support/

ASUS COMPUTER INTERNATIONAL (America)

Address 800 Corporate Way, Fremont, CA 94539, USA

Telephone +1-510-739-3777

Fax +1-510-608-4555

Web site http://www.asus.com/us/

Technical Support

Support fax +1-812-284-0883

Telephone +1-812-282-2787

Online support http://www.service.asus.com/

ASUS COMPUTER GmbH (Germany and Austria)

Address Harkort Str. 21-23, D-40880 Ratingen, Germany

Fax +49-2102-959911

Web site http://www.asus.com/de

Online contact http://eu-rma.asus.com/sales

Technical Support

Telephone +49-1805-010923*

Support Fax +49-2102-9599-11

Online support http://www.asus.com/de/support/

A-6 Appendices

EC Declaration of Conformity

We, the undersigned,

Manufacturer: ASUSTeK COMPUTER INC.

Address: 4F, No. 150, LI-TE Rd., PEITOU, TAIPEI 112, TAIWAN

Authorized representative in Europe: ASUS COMPUTER GmbH

Address, City: HARKORT STR. 21-23, 40880 RATINGEN

Country: GERMANY

declare the following apparatus:

Product name : Motherboard

Model name :

M5A78L-M LE/USB3

conform with the essential requirements of the following directives:

2004/108/EC-EMC Directive

EN 55022:2010+AC:2011

EN 61000-3-2:2006+A2:2009

EN 55013:2001+A1:2003+A2:2006

EN 55024:2010

EN 61000-3-3:2008

EN 55020:2007+A11:2011

1999/5/EC-R&TTE Directive

EN 300 328 V1.8.1(2012-06)

EN 300 440-1 V1.6.1(2010-08)

EN 300 440-2 V1.4.1(2010-08)

EN 301 511 V9.0.2(2003-03)

EN 301 908-1 V5.2.1(2011-05)

EN 301 908-2 V5.2.1(2011-07)

EN 301 893 V1.7.1(2012-06)

EN 302 544-2 V1.1.1(2009-01)

EN 302 623 V1.1.1(2009-01)

EN 50360:2001

EN 62479:2010

EN 50385:2002

EN 62311:2008

EN 301 489-1 V1.9.2(2011-09)

EN 301 489-3 V1.4.1(2002-08)

EN 301 489-4 V1.4.1(2009-05)

EN 301 489-7 V1.3.1(2005-11)

EN 301 489-9 V1.4.1(2007-11)

EN 301 489-17 V2.2.1(2012-09)

EN 301 489-24 V1.5.1(2010-09)

EN 302 326-2 V1.2.2(2007-06)

EN 302 326-3 V1.3.1(2007-09)

EN 301 357-2 V1.4.1(2008-11)

EN 302 291-1 V1.1.1(2005-07)

EN 302 291-2 V1.1.1(2005-07)

2006/95/EC-LVD Directive

EN 60950-1: 2006 / A12: 2011

EN 60950-1: 2006 / A2: 2013

EN 60065:2002 / A12: 2011

2009/125/EC-ErP Directive

Regulation (EC) No. 1275/2008

Regulation (EC) No. 642/2009

Regulation (EC) No. 278/2009

Regulation (EC) No. 617/2013

2011/65/EU-RoHS Directive

Ver. 150311

CE marking

Declaration Date:27/04/2015

Year to begin affixing CE marking: 2015

Position : CEO

Name :

Jerry Shen

Signature :

__________

(EC conformity marking)

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2. 1077(a)

Responsible Party Name: Asus Computer International

Address: 800 Corporate Way, Fremont, CA 94539.

Phone/Fax No: (510)739-3777/(510)608-4555

hereby declares that the product

Product Name : Motherboard

Model Number : M5A78L-M LE/USB3

Conforms to the following specifications:

FCC Part 15, Subpart B, Unintentional Radiators

Supplementary Information:

This device complies with part 15 of the FCC Rules. Operation is subject to the

following two conditions: (1) This device may not cause harmful interference,

and (2) this device must accept any interference received, including interference

that may cause undesired operation.

Representative Person’s Name : Steve Chang / President

Signature :

Date : Apr. 27, 2015

Ver. 140331

Table of Contents

ASUS M5A78L-M LE/USB3 User Manual

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