M5A78L-M LX
Contents
iii
Contents
iv
Contents
v
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, and
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 modifications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
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.
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
information in different regions.
vi
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
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.
Safety information
Electrical safety
•
To prevent electric shock hazard, disconnect the power cable from the electric outlet
before relocating the system.
•
When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
•
•
•
Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a qualified service
technician or your retailer.
Operation safety
•
•
•
•
Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
Before using the product, ensure that 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 qualified service
technician or your retailer.
vii
About this guide
This user guide contains the information you need when installing and configuring the
motherboard.
How this guide is organized
This guide contains the following parts:
•
Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
•
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.
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.
Where to find more information
Refer to the following sources for additional information and for product and software
updates.
1.
ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2.
Optional documentation
Your product package may include optional documentation, such as warranty flyers,
that may have been added by your dealer. These documents are not part of the
standard package.
Typography
Bold text
Italics
Indicates a menu or an item to select.
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 (+).
Example: <Ctrl>+<Alt>+<D>
viii
M5A78L-M LX specifications summary
CPU
AMD® Socket AM3+ for AMD® FX™ / Phenom™ II /
Athlon™ II / Sempron™ 100 series processors
AMD® Cool ‘n’ Quiet™ 2.0 Technology (depending on CPU type)
Supports CPU up to 95W
* 32nm AM3+ CPU is supported by BIOS version 0401 and later.
Chipset
AMD® 760G (780L)/ SB710
Front side bus
Memory
Up to 5200 MT/s HyperTransport™ 3.0 interface
Dual-channel memory architecture
2 x 240-pin DIMM slots support maximum 8GB unbuffered
ECC and non-ECC DDR3 1866(O.C.) / 1600(O.C.) / 1333 /
1066MHz memory modules
*
AMD® FX™ Series CPU on this motherboard supports up to
DDR3 1866MHz as its standard memory frequency.
** Due to CPU spec., AMD® 100 and 200 series CPUs support
up to DDR3 1066MHz. With ASUS design, this motherboard
can support up to DDR3 1333MHz.
*** When overclocking, some AMD CPU models may not
support DDR3 1600 MHz or higher frequency DIMMs.
****Refer to www.asus.com for the latest Memory QVL (Qualified
Vendors List).
***** Use a 64-bit Windows® OS if you want to install 4GB or
more memory on the motherboard.
Graphics
Integrated ATI Radeon™ HD 3000 GPU
Supports max. shared memory of 1GB
Supports RGB with max. resolution of 2048 x 1536 (@85Hz)
Supports Microsoft® DirectX 10
Supports Hybrid CrossFireX™ (for Windows® Vista or later
version)
Hybrid CrossFireX™.
Expansion slots
Storage / RAID
1 x PCIe 2.0 x16 slot
2 x PCIe x1 slots
1 x PCI slot
6 x Serial ATA 3Gb/s connectors support RAID 0, RAID 1,
RAID 10, and JBOD configurations
LAN
Realtek Gigabit LAN
Audio
ALC887 supports 8-channel* High Definition Audio
Supports Single SPDIF Out and Anti-pop function
* Use the chassis with HD audio module in the front panel to
support 8-channel audio output.
USB
Supports up to 10 USB 2.0/1.1 ports (6 ports at mid-board,
4 ports at the back panel)
(continued on the next page)
ix
M5A78L-M LX specifications summary
Back panel I/O ports
1 x PS/2 Keyboard port
1 x PS/2 Mouse port
1 x COM port
1 x LPT port
1 x D-Sub port
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
3 x Audio jacks
Internal I/O connectors
3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1
ports
6 x SATA connectors
1 x CPU / 1 x Chassis fan connectors
1 x Front panel audio connector
1 x S/PDIF_OUT connector
1 x Speaker connector
1 x System panel connector
1 x 24-pin ATX power connector
1 x 4-pin ATX 12V power connector
BIOS
16Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
ACPI2.0a, SM BIOS 2.6
ASUS unique features
ASUS Core unlocker
ASUS Q-Fan
ASUS CrashFree BIOS3
ASUS EZ Flash2
ASUS AI Charger
ASUS MyLogo2
ASUS EPU-4 Engine
ASUS Anti Surge
ASUS exclusive
Intelligent overclocking tools:
overclocking features
-
Turbo Key
SFS (Stepless Frequency Selection):
-
FSB frequency tuning from 200MHz up to 550MHz at
1MHz increment
-
Adjustable DRAM Voltage
Overclocking Protection:
ASUS C.P.R (CPU Parameter Recall)
-
Accessories
Support DVD
2 x Serial ATA 3Gb/s cables
1 x I/O shield
1 x User Manual
Drivers
ASUS Update
ASUS utilities
Anti-Virus software (OEM version)
Form factor
MicroATX form factor: 9.6 in x 8.0 in (24.4 cm x 20.3 cm)
*Specifications are subject to change without notice.
x
Chapter 1
Product introduction
1.1
Welcome!
Thank you for buying an ASUS® M5A78L-M LX motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2
Package contents
Check your motherboard package for the following items.
Motherboard
Cables
ASUS M5A78L-M LX motherboard
2 x Serial ATA cables
1 x I/O shield
Accessories
Application DVD
Documentation
ASUS motherboard Support DVD
User Manual
If any of the above items is damaged or missing, contact your retailer.
1.3
Special features
1.3.1
Product highlights
AMD® FX™ / Phenom™ II / Athlon™ II / Sempron™ 100 series
CPU support
This motherboard supports AMD® Socket AM3+ multi-core processors
with unique L3 cache and delivers better overclocking capabilities with
less power consumption. It features dual-channel DDR3 memory support
and accelerates data transfer rate up to 5200MT/s via HyperTransport™
3.0-based system bus. This motherboard also supports AMD® CPUs in
the new 32nm manufacturing process.
ASUS M5A78L-M LX
1-1
HyperTransport™ 3.0 support
HyperTransport™ 3.0 technology provides 2.6 times more bandwidth
than HT1.0 that radically improves system efficiency for a smoother and
faster computing environment.
AMD® Cool ‘n’ Quiet Technology
This motherboard supports the AMD® Cool ‘n’ Quiet technology which
monitors system operation and automatically adjusts CPU voltage and
frequency for a cool and quiet operating environment.
Dual-Channel DDR3 1866 (O.C.) support
This motherboard supports DDR3 memory that features data transfer
rates of 1866 (O.C.)/1600 (O.C.)/1333/1066 MHz to meet the higher
bandwidth requirements of the latest operating system, 3D graphics,
multimedia, and Internet applications.
Hybrid CrossFireX™ support
ATI Hybrid CrossFireX™ technology greatly boosts graphics performance
with an onboard GPU and a discrete GPU.
•
•
Hybrid CrossFireX™ is supported by Windows® Vista / Windows® 7OS only.
Gigabit LAN solution
The onboard LAN controller is a highly integrated Gb LAN controller. It is
enhanced with an ACPI management function to provide efficient power
management for advanced operating systems.
Serial ATA 3Gb/s technology and RAID support
This motherboard supports hard drives based on the Serial ATA (SATA)
3Gb/s storage specification, delivering enhanced scalability and doubling
the bus bandwidth for high-speed data retrieval and save. It also supports
RAID 0, RAID 1, and RAID 0+1 configurations for Serial ATA hard drives.
1-2
Chapter 1: Product introduction
1.3.2
Innovative ASUS features
Core Unlocker
1
2
ASUS Core Unlocker simplifies the activation of a latent AMD® CPU-
with just pressing a key. Enjoy an instant performance boost by simply
unlocking the extra cores, without performing complicated BIOS changes.
ASUS Turbo Key
ASUS Turbo Key allows you to turn the PC power button into
an overclocking button. After the easy setup, Turbo Key boosts
performances without interrupting ongoing work or games, simply through
pressing the button.
ASUS MyLogo2™
Turn your favorite photos into 256-color boot logos to personalize your
system.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to
restore a corrupted BIOS file using the bundled support DVD or a USB
flash disk that contains the BIOS file.
ASUS EZ Flash 2
ASUS EZ Flash 2 allows you to update the BIOS from a USB flash disk
before entering the OS.
ASUS Q-Fan
ASUS Q-Fan technology intelligently adjusts the CPU fan speed
according to system loading to ensure a quiet, cool, and efficient
operation.
ASUS Anti-Surge Protection
This special design prevents expensive devices and the motherboard
from damage caused by power surges from switching power supply
(PSU).
ASUS EPU
ASUS EPU is a unique power saving technology that detects the current
system loadings and adjusts the power consumption in real time.
ASUS M5A78L-M LX
1-3
C.P.R. (CPU Parameter Recall)
The BIOS C.P.R. feature automatically restores the CPU default settings
when the system hangs due to overclocking failure. C.P.R. eliminates the
need to open the system chassis and clear the RTC data. Simply shut
down and reboot the system, and the BIOS automatically restores the
CPU parameters to their default settings.
ErP ready
The motherboard is European Union´s Energy-related Products (ErP)
ready, and ErP requires products to meet certain energy efficiency
requirements in regards to energy consumptions. This is in line with
ASUS vision of creating environment-friendly and energy-efficient
products through product design and innovation to reduce carbon
footprint of the product and thus mitigate environmental impacts.
1-4
Chapter 1: Product introduction
1.4
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, switch off the ATX power supply and
detach its power cord. Failure to do so may cause severe damage to the motherboard,
peripherals, or components.
Onboard LED
The motherboard comes with a standby power LED that lights up to indicate that the system
is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down
the system and unplug the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard LED.
SB_PWR
M5A78L-M LX
ON
OFF
Standby Power Powered Off
M5A78L-M LX Onboard LED
ASUS M5A78L-M LX
1-5
1.5
Motherboard overview
1.5.1
Placement direction
When installing the motherboard, ensure that you 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 below.
1.5.2
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.
Place this side towards
the rear of the chassis.
M5A78L-M LX
1-6
Chapter 1: Product introduction
1.5.3
Motherboard layout
1
5
6
2
3
4
20.3cm(8.0in)
KBMS
EPU
KBPWR
ATX12V
3
USB34
LAN1_USB12
CPU_FAN
CHA_FAN
AMD®
760G
AUDIO
PCIEX1_1
RTL
8111E
PCIEX16
M5A78L-M LX
CLRTC
16Mb
BIOS
Super
I/O
AMD®
SB710
7
Lithium Cell
PCIEX1_2
CMOS Power
SATA3G_2
SATA3G_1
SATA3G_4
SATA3G_3
PCI1
USB910
USBPW5-10
USB56
ALC
887
SPDIF_OUT
SPEAKER
USB78
AAFP
SB_PWR
F_PANEL
14
13 12 11
10
9
8
2
1.5.4
Layout contents
Connectors/Jumpers/Slots
Page
Connectors/Jumpers/Slots
Page
1. Keyboard power (3-pin KBPWR)
1-19 8.
System panel connector (10-1 pin F_PANEL) 1-24
2. USB device wake-up (3-pin USBPW1-4,
USBPW5-10)
1-19 9.
Speaker connector (4- pin SPEAKER)
1-24
1-25
3. ATX power connectors (24-pin EATXPWR, 4-pin 1-22 10. USB connectors (10-1 pin USB56, USB78,
ATX12V)
USB910)
4. CPU and chassis fan connectors (4-pin
1-26 11. Digital audio connector (4-1 pin SPDIF_OUT) 1-25
CPU_FAN and 3-pin CHA_FAN)
5. AMD CPU socket
1-8
1-11 13. Front panel audio connector (10-1 pin AAFP) 1-21
1-23 14. Clear RTC RAM (CLRTC) 1-18
12. Onboard LED (SB_PWR)
1-5
6. DDR3 DIMM sockets
7. Serial ATA connectors (7-pin SATA1-6)
ASUS M5A78L-M LX
1-7
1.6
Central Processing Unit (CPU)
This motherboard comes with an AM3+ socket designed for FX™ / Phenom™ II / Athlon™ II /
Sempron™ 100 series processors.
The AM3+ socket has a different pinout from the AM2+/AM2 socket. Ensure that you use a
CPU designed for the AM3+ socket. The CPU fits in only one correct orientation. DO NOT
force the CPU into the socket to prevent bending the pins and damaging the CPU!
1.6.1
Installing the CPU
To install a CPU:
1.
Locate the CPU socket on the motherboard.
M5A78L-M LX
M5A78L-M LX CPU AM3+
2.
Press the lever sideways to unlock the
socket, then lift it up to a 90°-100° angle.
Socket lever
Ensure that the socket lever is lifted up to a 90°-100° angle; otherwise, the CPU will not fit
in completely.
3.
Position the CPU above the socket such that the CPU
corner with the gold triangle matches the socket corner
with a small triangle.
4.
Carefully insert the CPU into the socket until it fits in place.
The CPU fits only in one correct orientation.
DO NOT force the CPU into the socket to
prevent bending the pins and damaging the
CPU!
Small triangle
Gold triangle
1-8
Chapter 1: Product introduction
5.
6.
When the CPU is in place, push down the socket
lever to secure the CPU. The lever clicks on the side
tab to indicate that it is locked.
Install a CPU heatsink and fan following the
instructions that comes with the heatsink package.
You can also refer to section 1.6.2 Installing
heatsink and fan for instructions.
7.
Connect the CPU fan cable to the CPU_FAN connector on the motherboard.
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
M5A78L-M LX
M5A78L-M LX CPU fan connector
DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
ASUS M5A78L-M LX
1-9
1.6.2
Installing the heatsink and fan
Ensure that you use only AMD-certified heatsink and fan assembly.
To install the CPU heatsink and fan:
1.
Place the heatsink on top of the installed CPU, ensuring that the heatsink fits properly
on the retention module base.
•
•
The retention module base is already installed on the motherboard upon purchase.
You do not have to remove the retention module base when installing the CPU or
installing other motherboard components.
•
If you purchased a separate CPU heatsink and fan assembly, ensure that a Thermal
Interface Material is properly applied to the CPU heatsink or CPU before you install the
heatsink and fan assembly.
CPU Fan
CPU Heatsink
Retention bracket
Retention Module Base
Retention bracket lock
Your boxed CPU heatsink and fan assembly should come with installation instructions for
the CPU, heatsink, and the retention mechanism. If the instructions in this section do not
match the CPU documentation, follow the latter.
2.
Attach one end of the retention bracket to the retention module base.
1
2
4
3
5
1-10
Chapter 1: Product introduction
3.
Align the other end of the retention bracket to the retention module base. A clicking
sound denotes that the retention bracket is in place.
Ensure that the fan and heatsink assembly perfectly fits the retention mechanism module
base, otherwise you cannot snap the retention bracket in place.
4.
Push down the retention bracket lock on the retention mechanism to secure the
heatsink and fan to the module base.
5.
When the fan and heatsink assembly is in place, connect the CPU fan cable to the
connector on the motherboard labeled CPU_FAN.
DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
1.7
System memory
1.7.1
Overview
The motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets. The figure illustrates the location of the DDR3 DIMM sockets:
Channel
Sockets
DIMM_A1
DIMM_B1
Channel A
Channel B
M5A78L-M LX
M5A78L-M LX 240-pin DDR3 DIMM sockets
ASUS M5A78L-M LX
1-11
1.7.2
Memory configurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR3 DIMMs
into the DIMM sockets.
•
You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel configuration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
•
Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
•
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:
-
-
Install a maximum of 3GB system memory if you are using a 32-bit Windows®
OS.
Use a 64-bit Windows® OS if you want to install 4GB or more memory on the
motherboard.
•
This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
M5A78L-M LX Motherboard Qualified Vendors Lists (QVL)
DDR3-1866(O.C.) MHz capability
Timing
DIMM
DIMM Support
Vendor
Part No.
Size
SS/DS
Brand
Chip NO.
Voltage
A*
B*
•
(BIOS)
Apacer
Corsair
78.0AGCD.CDZ(XMP)
CM3X2G1800C8D
2048MB(Kit of 2)
2048MB
SS
DS
SS
N/A
N/A
N/A
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
•
•
•
Transcend TX1800KLU-2GK
1024MB
•
DDR3-1600(O.C.) MHz capability
DIMM
Support
SS/
DS
Timing DIMM
(BIOS)
Vendor
Part No.
Size
Brand Chip NO.
Voltage
A* B*
A-Data
Corsair
Corsair
Corsair
Corsair
Corsair
Corsair
Crucial
Crucial
Crucial
Crucial
Crucial
Crucial
AD31600X002GMU
4096MB(Kit of 2)
2048MB(Kit of 2)
2048MB
DS N/A
SS N/A
DS N/A
Heat-Sink Package 7-7-7-20
1.75-1.85V
1.8V
•
•
•
•
•
•
•
•
CM3X1G1600C9DHX
Heat-Sink Package 9-9-9-24
Heat-Sink Package
•
•
•
•
•
•
•
•
•
•
•
•
CM3X2G1600C9DHX
TR3X6G1600C8 G(XMP)
TR3X6G1600C8D G(XMP)
TR3X6G1600C9 G(XMP)
TR3X6G1600C8D G(XMP)
BL12864BA1608.8SFB(XMP)
BL12864BE2009.8SFB3(EPP)
BL25664BN1608.16FF(XMP)
BL25664TB1608.K16SF(XMP)
BL25664TG1608.K16SF(XMP)
BL25664TR1608.K16SF(XMP)
6144MB(Kit of 3 ) DS N/A
6144MB(Kit of 3 ) DS N/A
6144MB(Kit of 3 ) DS N/A
Heat-Sink Package
Heat-Sink Package 8-8-8-24
Heat-Sink Package 9-9-9-24
Heat-Sink Package 8-8-8-24
Heat-Sink Package 8-8-8-24
Heat-Sink Package 9-9-9-28
Heat-Sink Package
1.65V
1.65V
1.65V
1.8V
6144MB(Kit of 3)
3072MB(Kit of 3)
3072MB(Kit of 3)
DS N/A
SS
SS
N/A
N/A
2.0V
•
•
6144MB(Kit of 3 ) DS N/A
6144MB(Kit of 3)
6144MB(Kit of 3)
6144MB(Kit of 3)
DS N/A
DS N/A
DS N/A
Heat-Sink Package 8-8-8-24
Heat-Sink Package 8-8-8-24
Heat-Sink Package 8-8-8-24
•
•
continued on the next page
1-12
Chapter 1: Product introduction
DDR3-1600(O.C.) MHz capability
DIMM
Support
SS/
DS
Timing DIMM
(BIOS)
Vendor
Part No.
Size
Brand Chip NO.
Voltage
A* B*
G.SKILL
G.SKILL
G.SKILL
Kingmax
F3-12800CL9D-2GBNQ
F3-12800CL8T-6GBHK
F3-12800CL9T-6GBNQ
FLGD45F-B8KG9
2048MB(Kit of 2)
2048MB
SS
N/A
Heat-Sink Package 9-9-9-24
Heat-Sink Package 8-8-8-21
1.5V~1.6V
1.6~1.65
•
•
•
•
•
DS N/A
DS N/A
SS
•
•
•
6144MB(Kit of 3)
1024MB
Heat-Sink Package 9-9-9-24
1.5V~1.6V
KFB8FNGXF-
ANX-12A
Kingmax
Kingmax
FLGD45F-B8MF7 MAEH(XMP) 1024MB
SS
DS
N/A
Heat-Sink Package
7
7
•
•
•
•
FLGE85F-B8KG9
2048MB
KFB8FNGXF-
ANX-12A
Kingmax
Kingston
Kingston
OCZ
FLGE85F-B8MF7 MEEH(XMP)
KHX1600C9D3K2/4G
2048MB
DS N/A
DS N/A
DS N/A
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
•
•
•
•
•
•
•
•
•
•
•
•
4096MB(kit of 2)
6144MB(Kit of 3)
3072MB(Kit of 3)
1.7-1.9V
1.65V
KHX1600C9D3K3/6GX(XMP)
OCZ3G1600LV3GK
SS
N/A
Heat-Sink Package 8-8-8-24
1.65V
OCZ
OCZ3G1600LV6GK
6144MB(Kit of 3 ) DS N/A
Heat-Sink Package 8-8-8-24
1.65V
Super Talent WA160UX6G9
6144MB(Kit of 3 ) DS N/A
Heat-Sink Package
9
DDR3-1333 MHz capability
DIMM
Support
Timing
DIMM
(BIOS)
SS/
Vendor
Part No.
Size
Brand
DS
Chip NO.
Voltage
A* B*
A-Data
A-Data
AD31333001GOU
AD31333G001GOU
1024MB
SS
A-Data AD30908C8D-151C E0906
N/A Heat-Sink Package
•
•
•
•
3072MB(Kit of 3) SS
8-8-8-24
8-8-8-24
1.65-
1.85V
A-Data
A-Data
AD31333002GOU
2048MB
2048MB
DS
DS
A-Data AD30908C8D-151C E0903
N/A Heat-Sink Package
•
•
•
•
AD31333G002GMU
1.65-
1.85V
Apacer
Apacer
Corsair
Corsair
Corsair
Corsair
Corsair
Corsair
Corsair
Corsair
Crucial
Crucial
Crucial
Crucial
Crucial
Crucial
Crucial
Crucial
Crucial
78.01GC6.9L0
1024MB
2048MB
1024MB
1024MB
SS
DS
SS
SS
Apacer AM5D5808AEWSBG0914E
9
9
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
78.A1GC6.9L1
Apacer AM5D5808AEWSBG0908D
CM3X1024-1333C9DHX
CM3X1024-1333C9
TR3X3G1333C9 G
N/A
N/A
N/A
N/A
N/A
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
9-9-9-24
1.60V
3072MB(Kit of 3) SS
3072MB(Kit of 3) SS
3072MB(Kit of 3) SS
9-9-9-24
9-9-9-24
9
1.50V
1.50V
1.5V
TR3X3G1333C9 G
TR3X3G1333C9
CM3X1024-1333C9DHX
CM3X2048-1333C9DHX
TW3X4G1333C9 G
CT12864BA1339.8FF
CT12872BA1339.9FF
BL12864TA1336.8SFB1
CT12864BA1339.8SFD
CT25664BA1339.16FF
CT25672BA1339.18FF
1024MB
2048MB
DS
DS
Corsair Heat-Sink Package
N/A
N/A
Heat-Sink Package
Heat-Sink Package
4096MB(Kit of 2) DS
9-9-9-24
1.50V
1024MB
1024MB
SS
SS
Micron 9FF22D9KPT
9
Micron 91F22D9KPT(ECC)
9
6-6-6-20
9
2048MB(Kit of 2) SS
N/A
Heat-Sink Package
1.8V
3072MB(Kit of 3) SS
Micron 8XD22D9JNM
Micron 9KF27D9KPT
Micron 91F22D9KPT(ECC)
2048MB
2048MB
DS
DS
9
9
BL25664ABA1336.16SFB1 4096MB(Kit of 2) DS
N/A
N/A
N/A
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
6-6-6-20
6-6-6-20
7-7-7-24
1.8V
1.8V
BL25664BA1336.16SFB1
4096MB(Kit of 2) DS
BL25664BN1337.16FF
(XMP)
6144MB(Kit of 3 ) DS
1.65V
Crucial
CT25664BA1339.16SFD
6144MB(Kit of 3 ) DS
Micron 8UD22D9JNM
9
•
(continued on the next page)
ASUS M5A78L-M LX
1-13
DDR3-1333 MHz capability
DIMM
Support
Timing
DIMM
(BIOS)
SS/
DS
Vendor
Part No.
Size
Brand
Chip NO.
Voltage
A* B*
G.SKILL
G.SKILL
G.SKILL
G.SKILL
G.SKILL
G.SKILL
G.SkiLL
G.SKILL
G.SKILL
GEIL
F3-10600CL8D-2GBHK
F3-10600CL9D-2GBPK
F3-10666CL7T-3GBPK
F3-10666CL9T-3GBNQ
F3-10600CL7D-2GBPI
F3-10600CL9D-2GBNQ
F3-10666CL8D-4GBHK
F3-10666CL7T-6GBPK
F3-10666CL9T-6GBNQ
DDR3-1333 CL9-9-9-24
GV34GB1333C7DC
1024MB
1024MB
SS
SS
G.SKILL Heat-Sink Package
G.SKILL Heat-Sink Package
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
3072MB(Kit of 3) SS
N/A
N/A
Heat-Sink Package
Heat-Sink Package
7-7-7-18 1.5~1.6V
3072MB(Kit of 3) SS
9-9-9-24 1.5~1.6V
1024MB
1024MB
DS
DS
G.SKILL Heat-Sink Package
G.SKILL Heat-Sink Package
4096MB(Kit of 2 ) DS
6144MB(Kit of 3 ) DS
6144MB(Kit of 3) DS
N/A
N/A
N/A
N/A
N/A
GEIL
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
GL1L128M88BA12N
8-8-8-21 1.5-1.6V
7-7-7-18 1.5~1.6V
9-9-9-24 1.5V~1.6V
9
•
•
•
•
•
•
1024MB
2048MB
SS
DS
GEIL
7-7-7-24
1.5V
GEIL
GG34GB1333C9DC
4096MB(Kit of 2) DS
9-9-9-24 1.3V(low
voltage)
GEIL
DDR3-1333 CL9-9-9-24
FLFD45F-B8MH9 MAES
FLFE85F-B8MF9
6144MB(Kit of 3 ) DS
N/A
Heat-Sink Package
9
9
1.5V
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Kingmax
Kingmax
Kingmax
Kingston
Kingston
Micron
Micron
Micron
Micron
Micron
Micron
Micron
Micron
OCZ
1024MB
2048MB
2048MB
1024MB
2048MB
1024MB
1024MB
1024MB
SS
DS
DS
SS
Micron 9CF22D9KPT
Micron 8HD22D9JNM
Micron 9GF27D9KPT
FLFE85F-B8MH9 MEES
KVR1333D3N9/1G
Hynix
H5TQ1G83BFR
1.5V
1.5V
KVR1333D3N9/2G
DS Qimonda IDSH1G-03A1F1C-13H
MT8JTF12864AY-1G4D1
MT8JTF12864AZ-1G4F1
MT9JSF 12872AZ-1G4F1
MT8JTF12864AY-1G4D1
MT12JSF25672AZ-1G4F1
MT16JTF25664AY-1G1D1
MT18JTF25664AZ-1G4F1
MT16JTF25664AY-1G4D1
OCZ3X1333LV3GK(XMP)
OCZ3G13334GK
SS
SS
SS
Micron 8LD22D9JNM
Micron 9FF22D9KPT
Micron 91F22D9KPT(ECC)
Micron 8XD22D9JNM
Micron 91F22D9KPT(ECC)
Micron 8LD22 D9JNM
Micron 9KF27D9KPT
Micron 8UD22D9JNM
9
9
9
9
3072MB(Kit of 3) SS
2048MB
2048MB
2048MB
DS
DS
DS
9
9
6144MB(Kit of 3 ) DS
3072MB(Kit of 3) SS
4096MB(Kit of 2) DS
4096MB(Kit of 2) DS
6144MB(Kit of 3 ) DS
6144MB(Kit of 3 ) DS
6144MB(Kit of 3 ) DS
N/A
N/A
N/A
N/A
N/A
N/A
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
1.6V
1.7V
OCZ
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
OCZ
OCZ3P13334GK
7-7-7-20
9-9-9-20
7-7-7-20
8-8-8-20
1.8V
OCZ
OCZ3G1333LV6GK
1.65V
1.65V
1.60V
OCZ
OCZ3P1333LV6GK
OCZ
OCZ3X1333LV6GK(XMP)
SAMSUNG M378B2873DZ1-CH9
SAMSUNG M378B2873DZ1-CH9
SAMSUNG M378B2873EH1-CH9
SAMSUNG M391B2873DZ1-CH9
SAMSUNG M378B5673DZ1-CH9
SAMSUNG M378B5673EH1-CH9
SAMSUNG M391B5673DZ1-CH9
Super Talent W1333X2GB8
1024MB
1024MB
1024MB
1024MB
2048MB
2048MB
2048MB
1024MB
1024MB
1024MB
2048MB
2048MB
SS Samsung K4B1G0846D-HCH9
SS Samsung SEC 846 HCH9 K4B1G08460
SS Samsung SEC 913 HCH9 K4B1G0846E
SS Samsung K4B1G0846D-HCH9(ECC)
DS Samsung K4B1G0846D-HCH9
DS Samsung SEC 913 HCH9 K4B1G0846E
DS Samsung K4B1G0846D-HCH9(ECC)
SS
SS
SS
DS
DS
N/A
N/A
N/A
Heat-Sink Package
Transcend
Transcend
Transcend
Transcend
TS128MLK64V3U
TS128MLK72V3U
TS256MLK64V3U
TS256MLK64V3U
SEC 813HCH9 K4B1G0846D
K4B1G0846D(ECC)
Micron 9GF27D9KPT
N/A SEC816HCH9K4B1G0846D
1-14
Chapter 1: Product introduction
DDR3-1066 MHz capability
DIMM
Support
Timing
DIMM
(BIOS)
SS/
DS
Vendor
Part No.
Size
Brand Chip NO.
Voltage
A*
•
B*
Crucial
Crucial
Crucial
Crucial
Elpida
CT12864BA1067.8FF
CT12872BA1067.9FF
CT25664BA1067.16FF
CT25672BA1067.18FF
EBJ51UD8BAFA-AC-E
EBJ51UD8BAFA-AE-E
KVR1066D3N7/1G
1024MB
1024MB
2048MB
2048MB
512MB
SS Micron
SS Micron
DS Micron
DS Micron
SS Elpida
SS Elpida
9GF22D9KPT
7
7
7
7
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
9HF22D9KPT(ECC)
9HF22D9KPT
•
•
9GF22D9KPT(ECC)
J5308BASE-AC-E
J5308BASE-AC-E
•
•
Elpida
512MB
•
Kingston
Kingston
Micron
Micron
Micron
Micron
Micron
Micron
OCZ
1024MB
2048MB
1024MB
1024MB
1024MB
SS Kingston D1288JEKAPGA7U
7
7
1.5V
1.5V
•
KVR1066D3N7/2G
DS Kingston D1288JEKAPGA7U
•
MT8JTF12864AY-1G1D1
MT8JTF12864AZ-1G1F1
MT9JSF12872AZ-1G1F1
SS Micron
SS Micron
SS Micron
DS Micron
DS Micron
DS Micron
8ED22D9JNL
•
9GF22D9KPT
7
7
•
9HF22D9KPT(ECC)
8LD22D9JNL
•
MT16JTF25664AY-1G1D1 2048MB
MT16JTF25664AZ-1G1F1 2048MB
MT18JSF25672AZ-1G1F1 2048MB
•
9HF22D9KPT
7
7
•
9GF22D9KPT(ECC)
Heat-Sink Package
•
OCZ3SOE10662GK
2048MB(Kit of 2) DS N/A
7-7-7-16
1.75V
•
SAMSUNG M378B2873EH1-CF8
1024MB
4096MB
SS Samsung SEC 901 HCF8 K4B1G0846E
•
SAMSUNG M378B5273BH1-CF8
DS Samsung 846 K4B2G0846B-HCF8
•
•
•
•
AMD® FX™ Series CPU on this motherboard supports up to DDR3 1866MHz as its
standard memory frequency.
Due to CPU spec., AMD® 100 and 200 series CPUs support up to DDR3 1066MHz. With
ASUS design, this motherboard can support up to DDR3 1333MHz.
When overclocking, some AMD CPU models may not support DDR3 1600 MHz or
higher frequency DIMMs.
SS: Single-sided / DS: Double-sided
DIMM support:
•
•
A*: Supports one module inserted into any slot as single-channel memory configuration.
B*: Supports one pair of modules inserted into either the blue slots or the black slots
as one pair of dual-channel memory configuration.
ASUS M5A78L-M LX
1-15
1.7.3
Installing a DIMM
Unplug the power supply before adding or removing DIMMs or other system components.
Failure to do so can cause severe damage to both the motherboard and the components.
2
1.
Press the retaining clips outward to
unlock a DIMM socket.
DIMM notch
2.
Align a DIMM on the socket such that
the notch on the DIMM matches the
DIMM slot key on the socket.
1
1
Unlocked retaining clip
A DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into
a socket in the wrong direction to avoid damaging the DIMM.
3.
Firmly insert the DIMM into the socket
until the retaining clips snap back in place
and the DIMM is properly seated.
3
Locked Retaining Clip
1.7.4
Removing a DIMM
To remove a DIMM:
1.
Simultaneously press the retaining clips
outward to unlock the DIMM.
2
Support the DIMM lightly with your
fingers when pressing the retaining
clips. The DIMM might get damaged
when it flips out with extra force.
1
1
DIMM notch
2.
Remove the DIMM from the socket.
1-16
Chapter 1: Product introduction
1.8
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.
1.8.1
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 firmly until the card is completely
seated on the slot.
5.
6.
Secure the card to the chassis with the screw you removed earlier.
Replace the system cover.
1.8.2
Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings.
1.
Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2.
Assign an IRQ to the card.
3.
Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.8.3
PCI slot
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specifications.
1.8.4
PCI Express x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specifications.
1.8.5
PCI Express x16 slot
This motherboard supports a PCI Express x16 graphics card that comply with the PCI
Express specifications.
ASUS M5A78L-M LX
1-17
1.9
Jumpers
1.
Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing
the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in
CMOS, which include system setup information such as system passwords.
CLRTC
1
2
2
3
M5A78L-M LX
Normal
Clear RTC
(Default)
M5A78L-M LX Clear RTC RAM
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5~10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to reenter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
•
•
If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut
down and reboot the system so the BIOS can automatically reset parameter settings to
default values.
1-18
Chapter 1: Product introduction
2.
USB device wake-up (3-pin USBPW1-4, USBPW5-10)
Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped,
DRAM refreshed, system running in low power mode) using the connected USB
devices. Set these jumpers to +5VSB to wake up the compurer from S3 and S4 sleep
modes (no power to CPU, DRAM in slow refresh, power supply in reduced power
mode).
USBPW1-4
+5VSB
+5V
(Default)
USBPW5-10
1
2
2
3
M5A78L-M LX
+5VSB
+5V
(Default)
M5A78L-M LX USB device wake-up
3.
Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up feature. When you
set this jumper to pins 2-3 (+5VSB), you can wake up the computer by pressing a key
on the keyboard. This feature requires an ATX power supply that can supply at least 1A
on the +5VSB lead, and a corresponding setting in the BIOS.
KBPWR
1
2
2
3
+5VSB
+5V
(Default)
M5A78L-M LX
M5A78L-M LX Keyboard power setting
ASUS M5A78L-M LX
1-19
1.10
Connectors
1.10.1
Rear panel ports
1
2
3
4 5
11
10
9
8
7
6
1.
2.
3.
PS/2 Mouse port (green). This port is for a PS/2 mouse.
Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.
LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)
through a network hub.
LAN port LED indications
ACT/LINK SPEED
LED LED
Activity/Link LED
Speed LED
Status
Status
Description
No link
Description
OFF
OFF
10Mbps connection
100Mbps connection
1Gbps connection
ORANGE
BLINKING
Linked
ORANGE
GREEN
Data activity
LAN port
4.
5.
6.
Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
Line Out port (lime). This port connects to a headphone or a speaker. In the 4, 6, and
8-channel configurations, the function of this port becomes Front Speaker Out.
Microphone port (pink). This port connects to a microphone.
Refer to the audio configuration table below for the function of the audio ports in 2, 4, 6, or
8-channel configuration.
Port
Headset 2-channel
4-channel
6-channel
8-channel
Light Blue (Rear panel)
Lime (Rear panel)
Pink (Rear panel)
Lime (Front panel)
Line In
Line Out
Mic In
–
Rear Speaker Out
Rear Speaker Out
Rear Speaker Out
Front Speaker Out
Bass/Center
Front Speaker Out Front Speaker Out
Mic In
–
Bass/Center
–
Side Speaker Out
To configure an 8-channel audio output:
Use a chassis with HD audio module in the front panel to support 8-channel audio output.
1-20
Chapter 1: Product introduction
7.
8.
9.
USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
VGA-compatible devices.
10. Serial port. This 9-pin COM1 port is for pointing devices or other serial devices.
11. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard.
1.10.2
Internal connectors
1.
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 Definition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
AAFP
PIN 1
PIN 1
M5A78L-M LX
HD-audio-compliant
pin definition
Legacy AC’97
compliant definition
M5A78L-M LX Front panel audio connector
•
•
We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard high-definition audio capability.
If you want to connect a high definition front panel audio module to this connector, set
the Front Panel Select item in the BIOS to [HD Audio]. See section 2.4.4 Onboard
Device Configuration for details.
•
The front panel audio I/O module is purchased separately.
ASUS M5A78L-M LX
1-21
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 fit these connectors in only one orientation. Find the proper orientation and
push down firmly until the connectors completely fit.
ATX12V
EATXPWR
+3 Volts
GND
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
PIN 1
+5 Volts
GND
GND
GND
+5 Volts
GND
PSON#
GND
M5A78L-M LX
+3 Volts
+3 Volts
-12 Volts
+3 Volts
PIN 1
M5A78L-M LX ATX power connectors
•
•
We recommend that you use an ATX 12V Specification 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 ATX12V power plug. Otherwise, the system will not
boot up.
•
We recommend that you use a PSU with higher power output when configuring a
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
•
If you are uncertain about the minimum power supply requirement for your system,
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
1-22
Chapter 1: Product introduction
3.
Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4, SATA5, and SATA6)
These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk
and optical disk drives. The Serial ATA 3Gb/s is backward compatible with Serial ATA
1.5Gb/s specification. The data transfer rate of the Serial ATA 3Gb/s is faster than the
standard parallel ATA with 133MB/s (Ultra DMA133). If you install Serial ATA hard disk
drives, you can create a RAID 0, RAID 1, or RAID 10 set through the onboard SB710
chipset.
SATA3G_5
GND
RSATA_TXN5
RSATA_TXP5
GND
RSATA_RXN5
RSATA_RXP5
GND
SATA3G_6
GND
RSATA_TXN6
RSATA_TXP6
GND
RSATA_RXN6
RSATA_RXP6
GND
SATA3G_2
SATA3G_4
SATA3G_1 SATA3G_3
M5A78L-M LX
M5A78L-M LX SATA connectors
•
•
Install the Windows® XP Service Pack 3 or later versions before using Serial ATA.
If you intend to create a SATA RAID set, set the type of the SATA connectors to [RAID]
in the BIOS. See 2.3.4 SATA Configuration for details.
•
The motherboard does not provide a floppy disk drive connector. You could use a USB
floppy disk drive when installing Windows® XP operating system on a hard disk drive
that includes a RAID/AHCI set.
•
•
Due to Windows® XP limitation, Windows® XP may not recognize the USB floppy disk
drive.
For more details on RAID/AHCI, refer to the RA ID/AHCI Supplementary Guide included
in the folder named Manual in the support DVD.
ASUS M5A78L-M LX
1-23
4.
System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
F_PANEL
PLED
PWRBTN
PIN 1
M5A78L-M LX
+HDLED RESET
M5A78L-M LX System panel connector
•
•
System power LED (2-pin PLED)
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 +HDLED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The HDD Activity LED lights up or flashes when data is read from or
written to the HDD.
•
•
Power/Soft-off button (2-pin PWRBTN)
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.
5.
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.
SPEAKER
M5A78L-M LX
PIN 1
M5A78L-M LX Speaker out connector
1-24
Chapter 1: Product introduction
6.
USB connectors (10-1 pin USB56, USB78, USB910)
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 specification that supports up to
480Mbps connection speed.
USB910
USB78
USB56
PIN 1
PIN 1
PIN 1
M5A78L-M LX
M5A78L-M LX USB2.0 connectors
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
7.
Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
M5A78L-M LX
SPDIF_OUT
M5A78L-M LX Digital audio connector
Ensure that the audio device of Sound playback is Realtek High Definition Audio (the
name may be different based on the OS). Go to Start > Control Panel > Sounds and
Audio Devices > Sound Playback to configure the setting.
The S/PDIF module is purchased separately.
ASUS M5A78L-M LX
1-25
8.
CPU and chassis fan connectors (4-pin CPU_FAN and 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.
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU FAN PWM
CHA_FAN
M5A78L-M LX
GND
+12V
Rotation
M5A78L-M LX Fan connectors
DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside
the system may damage the motherboard components. These are not jumpers! DO NOT
place jumper caps on the fan connectors.
Only the 4-pin CPU fan connector supports the ASUS Q-Fan feature.
1-26
Chapter 1: Product introduction
1.11
Software support
1.11.1
Installing an operating system
This motherboard supports Windows® XP/Vista/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 / Windows® Vista
Service Pack 1 or later versions before installing the drivers for better compatibility and
system stability.
1.11.2
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
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 icon to
display Support DVD/
motherboard information
Click an item to install
If Autorun is NOT enabled on your computer, browse the contents of the Support DVD to
locate the file ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
ASUS M5A78L-M LX
1-27
1-28
Chapter 1: Product introduction
Chapter 2
BIOS information
2.1
Managing and updating your BIOS
Save a copy of the original motherboard BIOS file to a USB flash 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.
2.
3.
Place the support DVD into the optical drive. The Drivers menu appears.
Click the Utilities tab, then click ASUS Update.
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 > ASUS Update >
ASUS Update to launch the ASUS Update utility.
2.
From the dropdown list, select either of the following methods:
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 traffic, or click Auto
Select then click Next.
c. From the FTP site, select the BIOS version that you want to download then click
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
ASUS M5A78L-M LX
2-1
Updating from a BIOS file
a. Select Update BIOS from a file, then click Next.
b. Locate the BIOS file from the Open window, then click Open.
3.
Follow the onscreen instructions to complete the updating process.
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 file from the ASUS website at
To update the BIOS using EZ Flash 2:
1.
Insert the USB flash disk that contains the latest BIOS file 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 file is found.
ASUSTek EZ Flash 2 BIOS ROM Utility V3.44
FLASH TYPE: WOINBOND W25X/Q16
Current ROM
Update ROM
BOARD: Unknown
VER: Unknown
BOARD: M5A78L-M LX
VER: 0203 (H:00 B:00)
DATE: 03/05/2011
DATE: Unknown
PATH: C:\
C:
Note
[Enter] Select or Load [Tab] Switch
[Up/Down/Home/End] Move [B] Backup
[V] Drive Info
[ESC] Exit
2.
When the correct BIOS file is found, EZ Flash 2 performs the BIOS update process
and automatically reboots the system when done.
•
This function supports USB flash 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!
2-2
Chapter 2: BIOS information
2.1.3
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file
when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS
file using the motherboard support DVD or a USB flash drive that contains the BIOS file.
•
•
Before using this utility, rename the BIOS file in the USB flash drive into
MA78LMLX.ROM.
Recovering the BIOS
To recover the BIOS:
1.
Turn on the system.
2.
Insert the support DVD to the optical drive or the removable device that contains the
BIOS file to the USB port or to the floppy disk drive, if supported.
3.
4.
The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and starts flashing the corrupted BIOS file.
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.
ASUS M5A78L-M LX
2-3
2.2
BIOS setup program
Use the BIOS Setup program to update the BIOS or configure 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 first 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 file for this
motherboard.
2-4
Chapter 2: BIOS information
2.2.1
BIOS menu screen
Menu items
Menu bar
Power
Configuration fields
General help
Version 0203
M5A78L-M LX BIOS Setup
Main Advanced
Boot
Tools
Exit
Main Settings
Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.
System Time
System Date
[19:34:30]
[Thu 03/05/2011]
SATA1
SATA2
SATA3
SATA4
SATA5
SATA6
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
Use [+] or [-] to
configure system
Time.
SATA Configuration
Select Screen
Select Item
System Information
Change Field
+-
Tab
F1
Select Field
General Help
Save and Exit
Exit
F10
ESC
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
Navigation keys
Submenu items
2.2.2
Menu bar
The menu bar on top of the screen has the following main items:
Main
For changing the basic system configuration
Advanced
Power
Boot
For changing the advanced system settings
For changing the advanced power management (APM) configuration
For changing the system boot configuration
Tools
Exit
For configuring options for special functions
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.
Some of the navigation keys differ from one screen to another.
ASUS M5A78L-M LX
2-5
2.2.4
Menu items
The highlighted item on the menu bar displays the specific 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
Configuration fields
These fields show the values for the menu items. If an item is user- configurable, you can
change the value of the field opposite the item. You cannot select an item that is not
user-configurable.
A configurable field is enclosed in brackets, and is highlighted when selected. To change the
value of a field, select it then press <Enter> to display a list of options. Refer to 2.2.7 Pop-up
window.
M5A78L-M LX BIOS Setup
Version 0203
Main
Advanced
Power
Boot
Tools
Exit
2.2.7
Pop-up window
Power Settings
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
a field.
Select a menu item then press
<Enter> to display a pop-up
window with the configuration
options for that item.
Suspend Mode
ACPI 2.0 Support
ACPI APIC support
[Auto]
[Disabled]
Options
[Enabled]
Use [+] or [-] to
configure system
Time.
S1 (POS) only
S3 only
Auto
APM Configuration
Hardware Monitor
Anti Surge Support
[Enabled]
Select Screen
Select Item
+-
F1
Change Field
General Help
F10 Save and Exit
ESC Exit
2.2.8
Scroll bar
A scroll bar appears on the right side
of a menu screen when there are
items that do not fit on the screen.
Press the <Up> / <Down> arrow
keys or <Page Up> /<Page Down>
keys to display the other items on
the screen.
v02.61 (C)Copyright 1985-2011, American, AmericanMegatrends, Inc.
Pop-up window
Scroll bar
2.2.9
General help
At the top right corner of the menu screen is a brief description of the selected item.
2-6
Chapter 2: BIOS information
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.
M5A78L-M LX BIOS Setup
Boot Tools Exit
Version 0203
Main
Advanced
Power
Main Settings
Use [ENTER], [TAB]
System Time
System Date
[19:34:30]
[Thu 03/05/2011]
or [SHIFT-TAB] to
select a field.
SATA1
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
:[Not Detected]
Use [+] or [-] to
configure system
Time.
SATA2
SATA3
SATA4
SATA5
SATA6
SATA Configuration
Select Screen
Select Item
System Information
Change Field
+-
Tab
F1
Select Field
General Help
Save and Exit
Exit
F10
ESC
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
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
SATA_1~6
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, Vendor,
Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring).
These values are not user-configurable. These items show Not Detected if no SATA device is
installed in the system.
Type [Auto]
Selects the type of SATA drive. Setting this item to [Auto] allows automatic selection of the
appropriate SATA device type. Select [CDROM] if you are specifically configuring a CD-ROM
drive. Select [ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120,
or MO drive. Configuration options: [Not Installed] [Auto] [CDROM] [ARMD]
This item only appears in the SATA_5/6 menus.
ASUS M5A78L-M LX
2-7
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. Configuration 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. Configuration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Configuration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Configuration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled]
2.3.4
SATA Configuration
The SATA Configuration menu allows you to configure 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. Configuration options: [Disabled]
[Enabled]
The following two items only appear when you set OnChip SATA Channel to [Enabled].
SATA Port1 - Port4 [IDE]
Allows you to set the SATA configuration.
[IDE]
Set to [IDE] when you want to use the Serial ATA hard disk drives as
Parallel ATA physical storage devices.
[RAID]
[AHCI]
Set to [RAID] when you want to create a RAID configuration from the SATA
hard disk drives.
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.
•
When this item is set to [AHCI], the information of the SATA connectors 1–6 can be seen
only under the OS environment or during POST.
•
For Windows® XP OS, you have to install the AHCI driver, so that you could use the
SATA connectors 1–6 in AHCI mode under the OS environment.
2-8
Chapter 2: BIOS information
SATA Port5 - Port6 [IDE]
Setting this item to [IDE] instead of [RAID] or [AHCI] allows the system to recognize the
optical dirves connected to the SATA connectors 5 or 6 when installing OS.
If you use a SATA optical drive to run the OS installation disk, we strongly recommend that
you install the optical dirve to the SATA connectors 5/6 and set them to [IDE] mode.
2.3.5
System Information
This menu gives you an overview of the general system specifications. The BIOS
automatically detects the items in this menu.
BIOS Information
Displays the auto-detected BIOS information.
Processor
Displays the auto-detected CPU specification.
System Memory
Displays the auto-detected system memory.
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 field
values can cause the system to malfunction.
M5A78L-M LX BIOS Setup
Boot Tools Exit
Version 0203
Main
Advanced
Power
Advanced Settings
Adjust System
Frequency/Voltage etc.
JumperFree Configuration
CPU Configuration
Chipset
Onboard Devices Configuration
PCIPnP
USB Configuration
Select Screen
Select Item
+-
Change Field
Tab Select Field
F1
General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
ASUS M5A78L-M LX
2-9
2.4.1
JumperFree Configuration
The items and configuration options in this menu may vary depending on the AMD CPU
type.
CPU OverClocking [Auto]
Selects the CPU overclocking options to achieve desired CPU internal frequency.
Configuration options: [Manual] [Auto] [Overclock Profile] [Test Mode]
The following item only appears when you set CPU Overclocking to [Manual].
CPU/HT Reference Clock (MHz) [200]
Sets the CPU/HT Reference Clock. Configuration options: [Min.=200] [Max.=550]
The following item only appears when you set CPU Overclocking to [Overclock Profile].
Overclock Options [Auto]
Selects the overclocking profile. Configuration options: [Auto] [Overclock 2%]
[Overclock 5%] [Overclock 8%] [Overclock 10%]
GPU Overclocking [Auto]
Configures the GPU overclocking. Configuration options: [Auto] [Manual]
The following item only appears when you set GPU Overclocking to [Manual].
GPU Engine Clock [350]
Sets the GPU Engine Clock. Configuration options: [Min.=150] [Max.=1000]
PCIE Overclocking [Auto]
Configures the PCIE overclocking. Configuration options: [Auto] [Manual]
The following item only appears when you set PCIE Overclocking to [Manual].
PCIE Clock [100]
Sets the PCIE Clock. Configuration options: [Min.=100] [Max.=150]
Processor Frequency Multiplier [Auto]
Sets the processor frequency multiplier. Configuration options: [Auto] [x4.0 800MHz]
[x4.5 900MHz] [x5.0 1000MHz] [x5.5 1100MHz] ~ [x13.0 2600MHz] [x13.5 2700MHz] [x14.0
2800MHz] [x14.5 2900MHz] [x15.0 3000MHz]
CPU/NB Frequency [Auto]
Sets the CPU/Northbridge frequency. Configuration options: [Auto] [4.00x] [5.00x] [6.00x]
[7.00x] [8.00x] [9.00x] [10.00x]
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. Configuration options: [Auto]
2-10
Chapter 2: BIOS information
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. Configuration options: [Auto]
LoadLine Calibration [Auto]
Sets the LoadLine. Configuration 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 Frequency [Auto]
Sets the HyperTransport link speed. Configuration options: [Auto] [200MHz] [400MHz]
[600MHz] [800MHZ] [1000MHz] [1200MHz] [1400MHz] [1600MHz] [1800MHz] [2000MHz]
HT Link Width [Auto]
Sets the HyperTransport link width. Configuration options: [Auto] [8 Bit] [16 Bit]
HT Over Voltage [Auto]
Sets the HT over voltage. The values range from 1.20000V to 1.38000V with a 0.01500V
increment. Use the <+> / <-> keys to adjust the value. Configuration options: [Auto]
[Max. = 1.38000V] [Min. = 1.20000V]
Memory Clock Mode [Auto]
Sets the memory clock mode. Configuration options: [Auto] [Manual]
The following item only appears when you set Memory Clock Mode to [Manual].
Memclock Value [400MHz]
Selects the DRAM frequency programming method.
Configuration options: [400MHz] [533MHz] [667MHz] [800MHz]
DRAM Timing Mode [Auto]
Sets the DRAM timing mode. Configuration options: [Auto] [DCT 0] [DCT 1] [Both]
The configuration options for some of the following items vary depending on the DIMMs you
install on the motherboard.
DRAM CAS# Latency [Auto]
Configuration options: [Auto] [4 CLK] ~ [12 CLK]
DRAM RAS# to CAS# Delay [Auto]
Configuration options: [Auto] [5 CLK] ~ [12 CLK]
DRAM RAS# PRE Time [Auto]
Configuration options: [Auto] [5 CLK] ~ [12 CLK]
DRAM RAS# ACT Time [Auto]
Configuration options: [Auto] [15 CLK] ~ [30 CLK]
ASUS M5A78L-M LX
2-11
DRAM READ to PRE Time [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM Row Cycle Time [Auto]
Configuration options: [Auto] [11 CLK] ~ [41 CLK]
DRAM WRITE Recovery Time [Auto]
Configuration options: [Auto] [5 CLK] [6 CLK] [7 CLK] [8 CLK] [10 CLK] [12 CLK]
DRAM RAS# to RAS# Delay [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM READ to WRITE Delay [Auto]
Configuration options: [Auto] [3 CLK] ~ [17 CLK]
DRAM WRITE to READ Delay(DD) [Auto]
Configuration options: [Auto] [2 CLK] ~ [10 CLK]
DRAM WRITE to READ Delay(SD) [Auto]
Configuration options: [Auto] [4 CLK] [5 CLK] [6 CLK] [7 CLK]
DRAM WRITE to WRITE Timing [Auto]
Configuration options: [Auto] [3 CLK] ~ [10 CLK]
DRAM READ to READ Timing [Auto]
Configuration options: [Auto] [3 CLK] ~ [10 CLK]
DRAM REF Cycle Time [Auto]
Configuration options: [Auto] [90ns] [110ns] [160ns] [300ns] [350ns]
DRAM Refresh Rate [Auto]
Configuration options: [Auto] [Every 7.8ms] [Every 3.9ms]
DRAM Command Rate [Auto]
Configuration options: [Auto] [1T] [2T]
Memory Over Voltage [Auto]
Sets the memory over voltage. The values range from 1.3500V to 2.2050V with a 0.0150V
increment. Use the <+> / <-> keys to adjust the value. Configuration options: [Auto] [Max. =
2.2050V] [Min. = 1.3500V]
Chipset Over Voltage [Auto]
Sets the chipset over voltage. The values range from 1.10000V to 1.61000V with a 0.01500V
increment. Use the <+> / <-> keys to adjust the value. Configuration options: [Auto]
[Max. = 1.61000V] [Min. = 1.10000V]
PCI/PCIe CLK Status [Enabled]
Enables or disables clock for PCI/PCIe slot. Configuration options: [Disabled] [Enabled]
2.4.2
CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
2-12
Chapter 2: BIOS information
GART Error Reporting [Disabled]
This option should remain disabled for the normal operation. The driver developer may
enable it for testing purpose. Configuration options: [Disabled] [Enabled]
Microcode Updation [Enabled]
Enables or disables Microcode Updation. Configuration options: [Disabled] [Enabled]
Secure Virtual Machine Mode [Disabled]
Enables or disables Secure Virtual Machine Mode (SVM). Configuration options: [Disabled]
[Enabled]
Cool ‘n’ Quiet [Enabled]
Enables or disables the AMD® Cool ‘n’ Quiet technology. Configuration 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.
Configuration 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. Configuration options: [Disabled] [Auto] [All Cores]
[Per Core]
The following items only appear 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. Configuration options: [Enabled] [Disabled]
Active CPU Cores [Auto]
Allows you to manually turn ON/OFF a process core. Configuration options: [Auto]
[Manual]
2nd / 3rd / 4th Core [On]
These items only appear when you set Active CPU Cores to [Manual].
Configuration options: [On] [Off]
Value (All Cores) [-2%]
This item only appears 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.
Configuration options: [0%] [+2%] [+4%] [+6%] [+8%] [+10%] [+12%] [-2%] [-4%]
[-6%] [-8%] [-10%] [-12%]
ASUS M5A78L-M LX
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.
Configuration options: [0%] [+2%] [+4%] [+6%] [+8%] [+10%] [+12%] [-2%] [-4%]
[-6%] [-8%] [-10%] [-12%]
2.4.3
Chipset
NorthBridge Configuration
Memory Configuration
Bank Interleaving [Auto]
Allows you to enable the bank memory interleaving. Configuration options: [Disabled]
[Auto]
Channel Interleaving [XOR of Address bit]
Allows you to enable the channel memory interleaving.
Configuration options: [Disabled] [Address bits 6] [Address bits 12]
[XOR of Address bits [20:16, 6]] [XOR of Address bits [20:16, 9]]
Enable Clock to All DIMMs [Disabled]
Enables unused Clocks to DIMMs even though memory slots are not populated.
Configuration options: [Disabled] [Enabled]
MemClk Tristate C3/ATLVID [Disabled]
Allows you to enable or disable MemClk Tri-Stating during C3 and Alt VID.
Configuration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Allows you to enable or disable memory remapping around memory hole.
Configuration options: [Disabled] [Enabled]
DCT Unganged Mode [Always]
Allows you to select the unganged DRAM mode (64-bit width).
ECC Configuration
ECC Mode [Disabled]
Allows you to set the ECC mode. Configuration options: [Disabled] [Basic] [Good]
Internal Graphics
Primary Video Controller [GFX0-GPP-IGFX-PCI]
Selects the primary display adapter. Configuration 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
UMA Frame Buffer Size [Auto]
Selects the UMA frame buffer size. Configuration options: [Auto] [32MB] [64MB]
[128MB] [256MB] [512MB] [1GB]
•
•
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.
Surround View [Auto]
Disables or enables the Surround View function. Configuration options: [Auto] [Disabled]
[Enabled]
This item becomes user-configurable when you install an ATI graphics card into the
PCIe x16 slot.
Frame Buffer Location [Above 4G]
Configuration options: [Below 4G] [Above 4G]
2.4.4
Onboard Device Configuration
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address. Configuration options: [Disabled]
[3F8/IRQ4][2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
Parallel Port Address [378]
Allows you to select the Parallel Port base addresses. Configuration options: [Disabled] [378]
[278] [3BC]
Parallel Port Mode [Normal]
Allows you to select the Parallel Port mode. Configuration options: [Normal] [EPP] [ECP]
[EPP+ECP]
Parallel Port IRQ [IRQ7]
Configuration options: [IRQ5] [IRQ7]
HDAudio Controller [Enabled]
Enables or disables the high definition audio controller. Configuration options: [Disabled]
[Enabled]
Front Panel Select [HD Audio]
Configuration options: [AC97] [HD Audio]
OnBoard LAN Controller [Enabled]
Configuration options: [Disabled] [Enabled]
ASUS M5A78L-M LX
2-15
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 field values
can cause the system to malfunction.
Plug and Play O/S [No]
When this item is set to [No], BIOS configures 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
configures the Plug and Play devices not required for boot. Configuration options: [No] [Yes]
2.4.6
USB Configuration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the configuration 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. Configuration options: [Disabled]
[Enabled]
USB 2.0 Controller [Enabled]
Enables or disables USB 2.0 Controllers. Configuration options: [Disabled] [Enabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for Legacy USB storage devices, including USB flash
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. Configuration options: [Disabled] [Enabled]
[Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to configure the USB 2.0 controller in HiSpeed (480Mbps) or Full Speed
(12Mbps). Configuration options: [FullSpeed] [HiSpeed]
The following items only appear when a USB storage device is plugged in.
USB Mass Storage Device Configuration
USB Mass Storage Reset Delay [20 Sec]
Sets the maximum time that the BIOS waits for the USB storage device to initialize.
Configuration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
Allows you to set the emulation type. Configuration options: [Auto] [Floppy]
2-16
Chapter 2: BIOS information
2.5
Power menu
The Power menu items allow you to change the settings for the Advanced Configuration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the configuration options.
M5A78L-M LX BIOS Setup
Version 0203
Main
Advanced
Power
Boot
Tools
Exit
Select the ACPI state
used for System
Suspend.
Power Settings
Suspend Mode
ACPI 2.0 Support
ACPI APIC Support
[Auto]
[Enabled]
[Enabled]
APM Configuration
HW Monitor Configuration
Anti Surge Support
[Enabled]
Select Screen
Select Item
+-
F1
Change Option
General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
2.5.1
Suspend Mode [Auto]
Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used
for system suspend. Configuration options: [S1 (POS) Only] [S3 Only] [Auto]
2.5.2
ACPI 2.0 Support [Enabled]
Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI) 2.0
support. Configuration options: [Disabled] [Enabled]
2.5.3
ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Configuration 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. Configuration options: [Disabled]
[Enabled]
2.5.4
APM Configuration
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.
Configuration options: [Power Off] [Power On] [Last State]
Power on From S5 By PME# [Disabled]
Enables or disables PME wake from sleep states. Configuration options: [Disabled] [Enabled]
Power on From S5 By Ring [Disabled]
Enables or disables ring to generate a wake event. Configuration options: [Disabled]
[Enabled]
ASUS M5A78L-M LX
2-17
Power on By PS/2 Keyboard [Disabled]
Enables or disables PS/2 Keyboard to generate a wake event.
Configuration 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. Configuration options: [Disabled]
[Enabled]
2.5.5
HW Monitor Configuration
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 field
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 efficient system operation. Configuration options: [Disabled] [Enabled]
The following item only appears 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 specified limit, the system sends out warning beeps. Configuration options:
[500 RPM] [400 RPM] [300 RPM] [200 RPM] [100 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]
[Turbo]
[Manual]
Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.
Set to [Turbo] to achieve maximum CPU fan speed.
Allows you to individually set the CPU fan parameters.
2.5.6
Anti Surge Support [Enabled]
Allows you to enable or disable the Anti-Surge protection feature.
2-18
Chapter 2: BIOS information
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.
M5A78L-M LX BIOS Setup
Boot Tools Exit
Version 0203
Main
Advanced
Power
Specifies the Boot
Device Priority
sequence.
Boot Settings
Boot Device Priority
A virtual floppy disk
drive (Floppy Drive B:)
may appear when you set
the CD-ROM drive as the
first boot device.
Boot Settings Configuration
Security
Select Screen
Select Item
Enter Go to Sub Screen
F1
F10
ESC
General Help
Save and Exit
Exit
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
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. Configuration 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, do any of the following:
•
•
Press <F5> when ASUS logo appears.
Press <F8> after POST.
2.6.2
Boot Settings Configuration
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. Configuration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
Enables or disables the full screen logo display feature. Configuration options: [Disabled]
[Enabled]
Set this item to [Enabled] to use the ASUS MyLogo2™ feature.
ASUS M5A78L-M LX
2-19
AddOn ROM Display Mode [Force BIOS]
Sets the display mode for option ROM. Configuration options: [Force BIOS] [Keep Current]
Bootup Num-Lock [On]
Selects the power-on state for the NumLock. Configuration 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. Configuration options: [Disabled] [Enabled]
Hit ‘DEL’ Message Display [Enabled]
When this item is set to [Enabled], the system displays the message Press DEL to run
Setup during POST. Configuration 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 configuration 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.
Confirm 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 1.9 Jumpers for information on how to erase the RTC RAM.
2-20
Chapter 2: BIOS information
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. Configuration 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 field.
Limited allows changes only to selected fields, such as Date and Time.
Full Access allows viewing and changing all the fields 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.
Confirm 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. Configuration options: [Setup] [Always]
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2-21
2.7
Tools menu
The Tools menu items allow you to configure options for special functions. Select an item
then press <Enter> to display the sub-menu.
M5A78L-M LX BIOS Setup
Boot Tools Exit
Version 0203
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)
Main
Advanced
Power
Tools Settings
ASUS EZ Flash 2
ASUS O.C. Profile
Select Screen
Select Item
Enter Go to Sub
Screen
F1
General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2011, American Megatrends, Inc.
2.7.1
ASUS EZ Flash 2
Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to
confirm your choice. See section 2.1.2 for details.
2.7.2
ASUS O.C. Profile
This item allows you to store or load multiple BIOS settings.
Add Your CMOS Profile
Allows you to save the current BIOS file to the BIOS Flash. In the Name sub-item, key in
your profile name and press <Enter>, and then choose a profile number to save your CMOS
settings in the Save to sub-item.
Load CMOS Profiles.
Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter> to
load the file.
Start O.C. Profile
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 flash 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 file only coming from the same memory/CPU
configuration and BIOS version.
Only the CMO file can be loaded.
2-22
Chapter 2: BIOS information
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.
M5A78L-M LX BIOS Setup
Boot Tools Exit
Version 0203
Main Advanced
Exit Options
Power
Exit system setup
after saving the
cahnges.
Exit & Save Changes
Exit & Discard Changes
Discard Changes
F10 key can be used
for this operation.
Load Setup Defaults
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 & Save Changes
Once you are finished 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 confirmation window appears. Select OK to save changes and exit.
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 fields other than System Date, System Time, and
Password, the BIOS asks for a confirmation 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 confirmation 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 confirmation 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.
ASUS M5A78L-M LX
2-23
2-24
Chapter 2: BIOS information
ASUS contact information
ASUSTeK COMPUTER INC.
Address
Telephone
Fax
E-mail
Web site
15 Li-Te Road, Peitou, Taipei, Taiwan 11259
+886-2-2894-3447
+886-2-2890-7798
Technical Support
Telephone
+86-21-38429911
Online support
support.asus.com
ASUS COMPUTER INTERNATIONAL (America)
Address
Telephone
Fax
800 Corporate Way, Fremont, CA 94539, USA
+1-510-739-3777
+1-510-608-4555
usa.asus.com
Web site
Technical Support
Telephone
Support fax
+1-812-282-2787
+1-812-284-0883
support.asus.com
Online support
ASUS COMPUTER GmbH (Germany and Austria)
Address
Harkort Str. 21-23, D40880 Ratingen, Germany
Fax
+49-2102-9599-11
Online contact
Technical Support
Component Telephone
System/Notebook /Eee/LCD Telephone
Support Fax
+49-1805-010923
+49-1805-010920
+492102959911
Online support
Website
|