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Contents Notices...vi Safety information vii About this guide viii M5A78L-M LX specifications summary ix Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System memory...
Contents Notices...vi Safety information vii About this guide viii M5A78L-M LX specifications summary ix Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System memory...
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... where it may become wet. • Place the product on it by yourself. DO NOT throw the motherboard in our products at ASUS REACH website at http://csr.asus.com/english/REACH.htm. These devices could interrupt the grounding circuit. • Ensure that all the manuals ...symbol of the crossed out wheeled bin indicates that the power cables for disposal of parts and recycling. Operation safety • Before installing the motherboard and adding devices on a stable surface. • If you are not damaged. Safety information Electrical safety • To prevent electric shock...
... where it may become wet. • Place the product on it by yourself. DO NOT throw the motherboard in our products at ASUS REACH website at http://csr.asus.com/english/REACH.htm. These devices could interrupt the grounding circuit. • Ensure that all the manuals ...symbol of the crossed out wheeled bin indicates that the power cables for disposal of parts and recycling. Operation safety • Before installing the motherboard and adding devices on a stable surface. • If you are not damaged. Safety information Electrical safety • To prevent electric shock...
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Typography Bold text Italics ++ Indicates a menu or an item to the ASUS contact information. 2. Keys enclosed in this guide To ensure that you perform certain tasks properly, take note of the motherboard and the new technology it supports. • Chapter 2: BIOS information This ... and greater-than sign means that you must press the enclosed key. Used to help you need when installing and configuring the motherboard. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. Example: ++ viii These documents are also...
Typography Bold text Italics ++ Indicates a menu or an item to the ASUS contact information. 2. Keys enclosed in this guide To ensure that you perform certain tasks properly, take note of the motherboard and the new technology it supports. • Chapter 2: BIOS information This ... and greater-than sign means that you must press the enclosed key. Used to help you need when installing and configuring the motherboard. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. Example: ++ viii These documents are also...
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With ASUS design, 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 ..., and JBOD configurations Realtek Gigabit LAN ALC887 supports 8-channel* High Definition Audio Supports Single SPDIF Out and Anti-pop function * Use the chassis with max. M5A78L-M LX specifications summary CPU Chipset Front side bus Memory Graphics Expansion slots Storage / RAID LAN Audio USB AMD® Socket AM3+ for AMD® FX™...
With ASUS design, 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 ..., and JBOD configurations Realtek Gigabit LAN ALC887 supports 8-channel* High Definition Audio Supports Single SPDIF Out and Anti-pop function * Use the chassis with max. M5A78L-M LX specifications summary CPU Chipset Front side bus Memory Graphics Expansion slots Storage / RAID LAN Audio USB AMD® Socket AM3+ for AMD® FX™...
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... process. It features dual-channel DDR3 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0-based system bus. The motherboard delivers a host of ASUS quality motherboards! ASUS M5A78L-M LX 1-1 This motherboard also supports AMD® CPUs in your package with the list below. 1.2 Package contents Check your retailer. 1.3 1.3.1 Special features Product highlights AMD...
... process. It features dual-channel DDR3 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0-based system bus. The motherboard delivers a host of ASUS quality motherboards! ASUS M5A78L-M LX 1-1 This motherboard also supports AMD® CPUs in your package with the list below. 1.2 Package contents Check your retailer. 1.3 1.3.1 Special features Product highlights AMD...
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...supports RAID 0, RAID 1, and RAID 0+1 configurations 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 high-speed data... of the latest operating system, 3D graphics, multimedia, and Internet applications. 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 provide efficient power management for...
...supports RAID 0, RAID 1, and RAID 0+1 configurations 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 high-speed data... of the latest operating system, 3D graphics, multimedia, and Internet applications. 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 provide efficient power management for...
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...; Turn your favorite photos into an overclocking button. ASUS M5A78L-M LX 1-3 ASUS Q-Fan ASUS Q-Fan technology intelligently adjusts the CPU fan speed according to system loading to personalize your system. ASUS Turbo Key ASUS Turbo Key allows you to restore a corrupted BIOS file using the bundled ...button into 256-color boot logos 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 simply unlocking the extra cores, without interrupting ongoing work or games,...
...; Turn your favorite photos into an overclocking button. ASUS M5A78L-M LX 1-3 ASUS Q-Fan ASUS Q-Fan technology intelligently adjusts the CPU fan speed according to system loading to personalize your system. ASUS Turbo Key ASUS Turbo Key allows you to restore a corrupted BIOS file using the bundled ...button into 256-color boot logos 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 simply unlocking the extra cores, without interrupting ongoing work or games,...
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... RTC data. This is European Union´s Energy-related Products (ErP) ready, and ErP requires products to meet certain energy efficiency requirements 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... shut down and reboot the system, and the BIOS automatically restores the CPU parameters to energy consumptions. C.P.R. (CPU Parameter Recall) The BIOS C.P.R. C.P.R. ErP ready The motherboard is in regards to their default settings.
... RTC data. This is European Union´s Energy-related Products (ErP) ready, and ErP requires products to meet certain energy efficiency requirements 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... shut down and reboot the system, and the BIOS automatically restores the CPU parameters to energy consumptions. C.P.R. (CPU Parameter Recall) The BIOS C.P.R. C.P.R. ErP ready The motherboard is in regards to their default settings.
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... uninstall any component, place it on them due to static electricity. • Hold components by the edges to the motherboard, peripherals, or components. SB_PWR M5A78L-M LX ON OFF Standby Power Powered Off M5A78L-M LX Onboard LED ASUS M5A78L-M LX 1-5 Failure to do so may cause severe damage to avoid touching the ICs on a grounded antistatic pad or in...
... uninstall any component, place it on them due to static electricity. • Hold components by the edges to the motherboard, peripherals, or components. SB_PWR M5A78L-M LX ON OFF Standby Power Powered Off M5A78L-M LX Onboard LED ASUS M5A78L-M LX 1-5 Failure to do so may cause severe damage to avoid touching the ICs on a grounded antistatic pad or in...
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DO NOT overtighten the screws! M5A78L-M LX 1-6 Chapter 1: Product introduction Doing so can damage the motherboard. 1.5 Motherboard overview 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the holes indicated by circles to secure the motherboard to the rear part of the chassis. The edge with external ports goes to the chassis. Place this side towards the rear of the chassis as indicated in the image below. 1.5.2 Screw holes Place six screws into the chassis in the correct orientation.
DO NOT overtighten the screws! M5A78L-M LX 1-6 Chapter 1: Product introduction Doing so can damage the motherboard. 1.5 Motherboard overview 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the holes indicated by circles to secure the motherboard to the rear part of the chassis. The edge with external ports goes to the chassis. Place this side towards the rear of the chassis as indicated in the image below. 1.5.2 Screw holes Place six screws into the chassis in the correct orientation.
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... connectors (24-pin EATXPWR, 4-pin 1-22 10. Clear RTC RAM (CLRTC) 1-18 ASUS M5A78L-M LX 1-7 Front panel audio connector (10-1 pin AAFP) 1-21 7. System panel connector (10-1 pin F_PANEL) 1-24 2. DDR3 DIMM sockets 1-11 13. Keyboard power (3-pin KBPWR) 1-19 8. 1.5.3 Motherboard layout 123 4 5 6 20.3cm(8.0in) KBMS KBPWR EPU ATX12V COM1 DDR3 DIMM_A1 (64bit...
... connectors (24-pin EATXPWR, 4-pin 1-22 10. Clear RTC RAM (CLRTC) 1-18 ASUS M5A78L-M LX 1-7 Front panel audio connector (10-1 pin AAFP) 1-21 7. System panel connector (10-1 pin F_PANEL) 1-24 2. DDR3 DIMM sockets 1-11 13. Keyboard power (3-pin KBPWR) 1-19 8. 1.5.3 Motherboard layout 123 4 5 6 20.3cm(8.0in) KBMS KBPWR EPU ATX12V COM1 DDR3 DIMM_A1 (64bit...
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.... Small triangle Gold triangle 1-8 Chapter 1: Product introduction Locate the CPU socket on the motherboard. otherwise, the CPU will not fit in place. 1.6 Central Processing Unit (CPU) This motherboard comes with a small triangle. 4. The AM3+ socket has a different pinout from the... AM2+/AM2 socket. Press the lever sideways to unlock the socket, then lift it fits in completely. 3. The CPU fits only in only one correct orientation. M5A78L-M LX M5A78L-M LX CPU...
.... Small triangle Gold triangle 1-8 Chapter 1: Product introduction Locate the CPU socket on the motherboard. otherwise, the CPU will not fit in place. 1.6 Central Processing Unit (CPU) This motherboard comes with a small triangle. 4. The AM3+ socket has a different pinout from the... AM2+/AM2 socket. Press the lever sideways to unlock the socket, then lift it fits in completely. 3. The CPU fits only in only one correct orientation. M5A78L-M LX M5A78L-M LX CPU...
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When the CPU is locked. 6. Connect the CPU fan cable to section 1.6.2 Installing heatsink and fan for instructions. 7. ASUS M5A78L-M LX 1-9 5. You can occur if you fail to connect the CPU fan connector! Hardware monitoring errors can also refer to the CPU_FAN connector on the.... Install a CPU heatsink and fan following the instructions that it is in place, push down the socket lever to secure the CPU. M5A78L-M LX CPU_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM M5A78L-M LX CPU fan connector DO NOT forget to plug this connector. The lever clicks on the motherboard.
When the CPU is locked. 6. Connect the CPU fan cable to section 1.6.2 Installing heatsink and fan for instructions. 7. ASUS M5A78L-M LX 1-9 5. You can occur if you fail to connect the CPU fan connector! Hardware monitoring errors can also refer to the CPU_FAN connector on the.... Install a CPU heatsink and fan following the instructions that it is in place, push down the socket lever to secure the CPU. M5A78L-M LX CPU_FAN GND CPU FAN PWR CPU FAN IN CPU FAN PWM M5A78L-M LX CPU fan connector DO NOT forget to plug this connector. The lever clicks on the motherboard.
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...Product introduction If the instructions in this section 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 already installed on...installation instructions for the CPU, heatsink, and the retention mechanism. To install the CPU heatsink and fan: 1. Place the heatsink on the motherboard upon purchase. • You do not match the CPU documentation, follow the latter. 2. Attach one end of the installed CPU, ensuring...
...Product introduction If the instructions in this section 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 already installed on...installation instructions for the CPU, heatsink, and the retention mechanism. To install the CPU heatsink and fan: 1. Place the heatsink on the motherboard upon purchase. • You do not match the CPU documentation, follow the latter. 2. Attach one end of the installed CPU, ensuring...
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Align the other end of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 M5A78L-M LX Channel Channel A Channel B M5A78L-M LX 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS M5A78L-M LX 1-11 DO NOT forget 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..., otherwise you fail to connect the CPU fan connector! Ensure that the retention bracket is in place. Push down the retention bracket lock on the motherboard labeled CPU_FAN. 3.
Align the other end of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 M5A78L-M LX Channel Channel A Channel B M5A78L-M LX 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS M5A78L-M LX 1-11 DO NOT forget 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..., otherwise you fail to connect the CPU fan connector! Ensure that the retention bracket is in place. Push down the retention bracket lock on the motherboard labeled CPU_FAN. 3.
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...Windows® OS if you do any of memory, we recommend that you want to the memory address limitation on the motherboard. • This motherboard does not support DIMMs made up of the lower-sized channel for the OS can be about 3GB or less. AD31600X002GMU ... 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. M5A78L-M LX Motherboard Qualified Vendors Lists (QVL) DDR3-1866(O.C.) MHz capability Vendor Part No. Timing DIMM (BIOS) Voltage DIMM Support A* B* DS N/A Heat-Sink Package ...
...Windows® OS if you do any of memory, we recommend that you want to the memory address limitation on the motherboard. • This motherboard does not support DIMMs made up of the lower-sized channel for the OS can be about 3GB or less. AD31600X002GMU ... 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. M5A78L-M LX Motherboard Qualified Vendors Lists (QVL) DDR3-1866(O.C.) MHz capability Vendor Part No. Timing DIMM (BIOS) Voltage DIMM Support A* B* DS N/A Heat-Sink Package ...
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... 2048MB(Kit of dual-channel memory configuration. Visit the ASUS website at www.asus.com for the latest QVL. ASUS M5A78L-M LX 1-15 Size SS/ DS Brand Chip NO. DDR3-1066 MHz capability Vendor Part No. With ASUS design, this motherboard can support up to DDR3 1333MHz. • When ...; • • • • • • • • • • • • • 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...
... 2048MB(Kit of dual-channel memory configuration. Visit the ASUS website at www.asus.com for the latest QVL. ASUS M5A78L-M LX 1-15 Size SS/ DS Brand Chip NO. DDR3-1066 MHz capability Vendor Part No. With ASUS design, this motherboard can support up to DDR3 1333MHz. • When ...; • • • • • • • • • • • • • 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...
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... socket. 2 DIMM notch 1 1 Unlocked retaining clip A DIMM is properly seated. The DIMM might get damaged when it fits in the wrong direction to both the motherboard and the components. 1. 1.7.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components.
... socket. 2 DIMM notch 1 1 Unlocked retaining clip A DIMM is properly seated. The DIMM might get damaged when it fits in the wrong direction to both the motherboard and the components. 1. 1.7.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components.
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... came with it by adjusting the software settings. 1. ASUS M5A78L-M LX 1-17 The following sub‑sections describe the slots and the expansion 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 they support... firmly until the card is already installed in a chassis). 3. Failure to use . 4. Remove the system unit cover (if your motherboard is completely seated on BIOS setup. 2. Replace the system cover. 1.8.2 Configuring an expansion card After installing the expansion card, configure it...
... came with it by adjusting the software settings. 1. ASUS M5A78L-M LX 1-17 The following sub‑sections describe the slots and the expansion 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 they support... firmly until the card is already installed in a chassis). 3. Failure to use . 4. Remove the system unit cover (if your motherboard is completely seated on BIOS setup. 2. Replace the system cover. 1.8.2 Configuring an expansion card After installing the expansion card, configure it...