Asus M5A78L-M LE/USB3 User manual

Motherboard
M5A78L-M LE/USB3

ii
E10372
First Edition
April 2015
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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

iv
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

v
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.

vi
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
1.1 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
2
5
6

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
3
2
4

1-6 Chapter 1: Product introduction
12
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
5
3
1
4
2

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
2
3

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
B
A
A

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.