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Contents Notices...vi Safety information vii M3A78-EMH HDMI specifications summary x Chapter 1: Product introduction 1.1 Welcome 1-2 1.2 Package contents 1-2 1.3 Special features 1-2 1.3.1 Product highlights 1-2 1.3.2 Innovative ASUS features 1-6 1.4 Before you proceed 1-7 1.5 Motherboard overview 1-8 1.5.1 Motherboard layout 1-8 1.5.2 Placement direction 1-9 1.5.3 Screw holes 1-9 1.6 Central Processing Unit (CPU 1-10 1.6.1 Installing the CPU 1-10 1.6.2 Installing the heatsink and ...
Contents Notices...vi Safety information vii M3A78-EMH HDMI specifications summary x Chapter 1: Product introduction 1.1 Welcome 1-2 1.2 Package contents 1-2 1.3 Special features 1-2 1.3.1 Product highlights 1-2 1.3.2 Innovative ASUS features 1-6 1.4 Before you proceed 1-7 1.5 Motherboard overview 1-8 1.5.1 Motherboard layout 1-8 1.5.2 Placement direction 1-9 1.5.3 Screw holes 1-9 1.6 Central Processing Unit (CPU 1-10 1.6.1 Installing the CPU 1-10 1.6.2 Installing the heatsink and ...
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M3A78-EMH HDMI specifications summary CPU. Chipset Front side bus Memory Expansion slots Graphics Storage / RAID AMD® Socket AM2+... 4 x 240-pin DIMM slots support unbuffered ECC and non-ECC DDR2 1066*/800/667/533 MHz memory modules Supports up to www.asus.com or user manual for Memory QVL (Qualified Vendors List) 1 x PCI Express™ x16 slot 1 x PCI Express™ ...system memory * DDR2 1066 is supported by AM2+ CPU only * Refer to 256MB Supports HDMI™ Technology with HDCP compliant with max. resolution 2048 x 1536 (@85Hz Dual link) Dual VGA output support: RGB & ...
M3A78-EMH HDMI specifications summary CPU. Chipset Front side bus Memory Expansion slots Graphics Storage / RAID AMD® Socket AM2+... 4 x 240-pin DIMM slots support unbuffered ECC and non-ECC DDR2 1066*/800/667/533 MHz memory modules Supports up to www.asus.com or user manual for Memory QVL (Qualified Vendors List) 1 x PCI Express™ x16 slot 1 x PCI Express™ ...system memory * DDR2 1066 is supported by AM2+ CPU only * Refer to 256MB Supports HDMI™ Technology with HDCP compliant with max. resolution 2048 x 1536 (@85Hz Dual link) Dual VGA output support: RGB & ...
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M3A78-EMH HDMI specifications summary Audio USB LAN ASUS overclocking features ASUS special features Back panel I/O ports BIOS Internal I/O connectors ALC883 High Definition Audio 8-channel CODEC Supports Jack-Detect and Multistreaming ... LAN SFS (Stepless Frequency Selection) from 200MHz to 300MHz at 1MHz increment Ajustable CPU Voltage at 0.025V increment ASUS C.P.R. (CPU Parameter Recall) ASUS Q-Fan ASUS CrashFree BIOS3 ASUS EZ Flash2 ASUS MyLogo2 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x HDMI port 1 x DVI port 1 x VGA port 1 x RJ45 port 4 x USB 2.0/1.1 port 8-channel Audio I/O...
M3A78-EMH HDMI specifications summary Audio USB LAN ASUS overclocking features ASUS special features Back panel I/O ports BIOS Internal I/O connectors ALC883 High Definition Audio 8-channel CODEC Supports Jack-Detect and Multistreaming ... LAN SFS (Stepless Frequency Selection) from 200MHz to 300MHz at 1MHz increment Ajustable CPU Voltage at 0.025V increment ASUS C.P.R. (CPU Parameter Recall) ASUS Q-Fan ASUS CrashFree BIOS3 ASUS EZ Flash2 ASUS MyLogo2 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x HDMI port 1 x DVI port 1 x VGA port 1 x RJ45 port 4 x USB 2.0/1.1 port 8-channel Audio I/O...
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M3A78-EMH HDMI specifications summary Accessories Form Factor Support DVD User manual 3 x Serial ATA cables 3 x SATA power cables (include one 2 in 1 power cable) 1 x UltraDMA 133/100/66 cable 1 x FDD cable 1 x I/O shield uATX Form factor: 9.6'' x 9.0'' (24.5cm x 22.9cm) Drivers ASUS PC Probe II ASUS LiveUpdate Utility Anti-Virus software (OEM version) *Specifications are subject to change without notice. xii
M3A78-EMH HDMI specifications summary Accessories Form Factor Support DVD User manual 3 x Serial ATA cables 3 x SATA power cables (include one 2 in 1 power cable) 1 x UltraDMA 133/100/66 cable 1 x FDD cable 1 x I/O shield uATX Form factor: 9.6'' x 9.0'' (24.5cm x 22.9cm) Drivers ASUS PC Probe II ASUS LiveUpdate Utility Anti-Virus software (OEM version) *Specifications are subject to change without notice. xii
User Manual
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1.1 Welcome! Before you for buying an ASUS® M3A78-EMH HDMI motherboard! The motherboard delivers a host of new features and latest technologies, making it , check the items in your package with less power consumption. .../s via HyperTransport™ 3.0 based system bus. See page 1-10 for the following items. Motherboard ASUS M3A78-EMH HDMI motherboard Cables 3 x Serial ATA signal cables 3 x Serial ATA power cables (includes one 2 in the long line of ASUS quality motherboards! Thank you start installing the motherboard, and hardware devices on it another standout in 1...
1.1 Welcome! Before you for buying an ASUS® M3A78-EMH HDMI motherboard! The motherboard delivers a host of new features and latest technologies, making it , check the items in your package with less power consumption. .../s via HyperTransport™ 3.0 based system bus. See page 1-10 for the following items. Motherboard ASUS M3A78-EMH HDMI motherboard Cables 3 x Serial ATA signal cables 3 x Serial ATA power cables (includes one 2 in the long line of ASUS quality motherboards! Thank you start installing the motherboard, and hardware devices on it another standout in 1...
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... allowing playback of H.264, VC1 and Mpeg2 used in HD DVD and BluRay disks. See 1-25 and 2-26 for multi-tasking. ASUS M3A78-EMH HDMI 1- Athlon 64 FX / Athlon 64 / Sempron CPU support The motherboard supports AMD socket AM2 single-core Athlon 64/ Sempron and dual...card for details. Meanwhile it can also support the future mainstream Hybrid CrossFire Technology that significantly optimizes your 3D performance. Technology. HDMI Interface HDMI (High-Definition Multimedia Interface) is the first and only industry-supported, uncompressed, all digital audio and video interface via a ...
... allowing playback of H.264, VC1 and Mpeg2 used in HD DVD and BluRay disks. See 1-25 and 2-26 for multi-tasking. ASUS M3A78-EMH HDMI 1- Athlon 64 FX / Athlon 64 / Sempron CPU support The motherboard supports AMD socket AM2 single-core Athlon 64/ Sempron and dual...card for details. Meanwhile it can also support the future mainstream Hybrid CrossFire Technology that significantly optimizes your 3D performance. Technology. HDMI Interface HDMI (High-Definition Multimedia Interface) is the first and only industry-supported, uncompressed, all digital audio and video interface via a ...
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... power management for advanced operating systems. USB 2.0 technology USB 2.0 is a highly integrated Gb LAN controller. See pages 1-29, 1-37 and 2-27 for four SATA connectors. ASUS M3A78-EMH HDMI 1- The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-detect feature, which automatically...
... power management for advanced operating systems. USB 2.0 technology USB 2.0 is a highly integrated Gb LAN controller. See pages 1-29, 1-37 and 2-27 for four SATA connectors. ASUS M3A78-EMH HDMI 1- The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-detect feature, which automatically...
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... motherboard, peripherals, and/or components. Failure to do so may cause severe damage to indicate that the ATX power supply is switched off mode. SB_PWR M3A78-EMH HDMI ON Standby Power M3A78-EMH HDMI Onboard LED OFF Powered Off ASUS M3A78-EMH HDMI 1- 1.4 Before you proceed Take note of the onboard LED.
... motherboard, peripherals, and/or components. Failure to do so may cause severe damage to indicate that the ATX power supply is switched off mode. SB_PWR M3A78-EMH HDMI ON Standby Power M3A78-EMH HDMI Onboard LED OFF Powered Off ASUS M3A78-EMH HDMI 1- 1.4 Before you proceed Take note of the onboard LED.
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...,240-pin module) DDR2 DIMM_B2 (64 bit,240-pin module) Socket AM2/AM2+ VGA_DVI PS2_USBPW1-4 USB34 LAN1_USB12 CPU_FAN AUDIO RTL8111C ICS 9LRPS485CGLF AMD 780G PCIEX1_1 M3A78-EMH HDMI PCIEX16 USB56 PCI1 ALC883 AAFP SPDIF_OUT PCI2 USBPW5-8 USBPW9-12 USB78 CD USB910 SB700 8Mb BIOS CR2032 3V Lithium Cell SB_PWR CMOS Power SATA4 SATA5...
...,240-pin module) DDR2 DIMM_B2 (64 bit,240-pin module) Socket AM2/AM2+ VGA_DVI PS2_USBPW1-4 USB34 LAN1_USB12 CPU_FAN AUDIO RTL8111C ICS 9LRPS485CGLF AMD 780G PCIEX1_1 M3A78-EMH HDMI PCIEX16 USB56 PCI1 ALC883 AAFP SPDIF_OUT PCI2 USBPW5-8 USBPW9-12 USB78 CD USB910 SB700 8Mb BIOS CR2032 3V Lithium Cell SB_PWR CMOS Power SATA4 SATA5...
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Do not overtighten the screws! the rear of the chassis as indicated in the correct orientation. R Place this side towards. Doing so can damage the motherboard. 1.5.2 Placement direction When installing the motherboard, make sure that you place it into the chassis in the image below. 1.5.3 Screw holes Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis. The edge with external ports goes to the rear part of the chassis M3A78-EMH HDMI ASUS M3A78-EMH HDMI 1-
Do not overtighten the screws! the rear of the chassis as indicated in the correct orientation. R Place this side towards. Doing so can damage the motherboard. 1.5.2 Placement direction When installing the motherboard, make sure that you place it into the chassis in the image below. 1.5.3 Screw holes Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis. The edge with external ports goes to the rear part of the chassis M3A78-EMH HDMI ASUS M3A78-EMH HDMI 1-
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DO NOT force the CPU into the socket to prevent bending the connectors on the motherboard. M3A78-EMH HDMI M3A78-EMH HDMI CPU Socket AM2/AM2+ 2. Socket lever Make sure that the socket lever is lifted up to 90°-100° angle, otherwise the CPU does ...
DO NOT force the CPU into the socket to prevent bending the connectors on the motherboard. M3A78-EMH HDMI M3A78-EMH HDMI CPU Socket AM2/AM2+ 2. Socket lever Make sure that the socket lever is lifted up to 90°-100° angle, otherwise the CPU does ...
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... CPU fan connector! Position the CPU above the socket such that it fits in one correct orientation. The lever clicks on the motherboard. ASUS M3A78-EMH HDMI 1-11 When the CPU is locked. 6. Connect the CPU fan cable to the CPU_FAN connector on the side tab to secure the CPU.... 3. M3A78-EMH HDMI CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND M3A78-EMH HDMI CPU Fan Connector Do not forget to plug this connector. Small triangle Gold triangle The CPU fits only in place....
... CPU fan connector! Position the CPU above the socket such that it fits in one correct orientation. The lever clicks on the motherboard. ASUS M3A78-EMH HDMI 1-11 When the CPU is locked. 6. Connect the CPU fan cable to the CPU_FAN connector on the side tab to secure the CPU.... 3. M3A78-EMH HDMI CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND M3A78-EMH HDMI CPU Fan Connector Do not forget to plug this connector. Small triangle Gold triangle The CPU fits only in place....
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A clicking sound denotes that the fan and heatsink assembly perfectly fits the retention mechanism module base; otherwise, you cannot snap the retention bracket in place. Make sure that the retention bracket is in place. 4. Attach one end of the retention bracket (near the retention bracket lock) to the retention module base. 2. ASUS M3A78-EMH HDMI 1-13 Align the other end of the retention bracket to the module base. Push down the retention bracket lock on the retention mechanism to secure the heatsink and fan to the retention module base. 3.
A clicking sound denotes that the fan and heatsink assembly perfectly fits the retention mechanism module base; otherwise, you cannot snap the retention bracket in place. Make sure that the retention bracket is in place. 4. Attach one end of the retention bracket (near the retention bracket lock) to the retention module base. 2. ASUS M3A78-EMH HDMI 1-13 Align the other end of the retention bracket to the module base. Push down the retention bracket lock on the retention mechanism to secure the heatsink and fan to the retention module base. 3.
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The figure illustrates the location of the DDR2 DIMM sockets: DIMM_A1 DIMM_B1 DIMM_A2 DIMM_B2 128 Pins 112 Pins M3A78-EMH HDMI M3A78-EMH HDMI 240-pin DDR2 DIMM Sockets Channel Channel 1 Channel 2 Sockets DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 1.7.2 Memory configurations You may install 256 MB, 512 MB, 1 GB, ...
The figure illustrates the location of the DDR2 DIMM sockets: DIMM_A1 DIMM_B1 DIMM_A2 DIMM_B2 128 Pins 112 Pins M3A78-EMH HDMI M3A78-EMH HDMI 240-pin DDR2 DIMM Sockets Channel Channel 1 Channel 2 Sockets DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 1.7.2 Memory configurations You may install 256 MB, 512 MB, 1 GB, ...
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... DIMM pair in all four sockets OR - Important notice on each slot. 64-bit Windows® XP Professional x64 Edition Windows® Vista x64 Edition ASUS M3A78-EMH HDMI 1-15 • When using only one memory module, start installing the DDR2 DIMM from the same vendor. For optimum compatibility, we recommend that you are...
... DIMM pair in all four sockets OR - Important notice on each slot. 64-bit Windows® XP Professional x64 Edition Windows® Vista x64 Edition ASUS M3A78-EMH HDMI 1-15 • When using only one memory module, start installing the DDR2 DIMM from the same vendor. For optimum compatibility, we recommend that you are...
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M3A78-EMH HDMI Motherboard Qualified Vendors Lists (QVL) DDR2-1066 MHz capability Size 512MB 1G 1G 1G 1G 512MB Vendor Model CL Brand SS/ DS Component Kingston Kingston ...
M3A78-EMH HDMI Motherboard Qualified Vendors Lists (QVL) DDR2-1066 MHz capability Size 512MB 1G 1G 1G 1G 512MB Vendor Model CL Brand SS/ DS Component Kingston Kingston ...
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... DIMM notch 1 Unlocked retaining clip • A DDR2 DIMM is keyed with a notch so that the notch on the DIMM matches the break on the socket. 3. ASUS M3A78-EMH HDMI 1-21 1.7.3 Installing a DIMM Make sure to both the motherboard and the components. 1. Align a DIMM on the socket such that it flips out with your fingers...
... DIMM notch 1 Unlocked retaining clip • A DDR2 DIMM is keyed with a notch so that the notch on the DIMM matches the break on the socket. 3. ASUS M3A78-EMH HDMI 1-21 1.7.3 Installing a DIMM Make sure to both the motherboard and the components. 1. Align a DIMM on the socket such that it flips out with your fingers...
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ASUS M3A78-EMH HDMI 1-23 Interrupt assignments IRQ Standard function 0 System timer 1 Standard 101/102-Key or Microsoft Natural Keyboard 2 Programmable interrupt controller 3 Standard OpenHCI USB Host Controller 4 Communications ...
ASUS M3A78-EMH HDMI 1-23 Interrupt assignments IRQ Standard function 0 System timer 1 Standard 101/102-Key or Microsoft Natural Keyboard 2 Programmable interrupt controller 3 Standard OpenHCI USB Host Controller 4 Communications ...
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... motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the other cards that comply with PCI Express specifications. ASUS M3A78-EMH HDMI 1-25 See page 2-26 for details. • The Surroundview function supports up to four monitors, two from the VGA and DVI... 1.8.3 PCI slots The PCI slots support cards such as a LAN card, SCSI card, USB card, and other two from the onboard VGA and DVI-D/HDMI out ports, with the PCI Express specifications. The figure shows a LAN card installed on the PCI Express x16 slot and enable the Surroundview item in...
... motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the other cards that comply with PCI Express specifications. ASUS M3A78-EMH HDMI 1-25 See page 2-26 for details. • The Surroundview function supports up to four monitors, two from the VGA and DVI... 1.8.3 PCI slots The PCI slots support cards such as a LAN card, SCSI card, USB card, and other two from the onboard VGA and DVI-D/HDMI out ports, with the PCI Express specifications. The figure shows a LAN card installed on the PCI Express x16 slot and enable the Surroundview item in...
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... so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. M3A78-EMH HDMI CLRTC 12 23 Normal (Default) M3A78-EMH HDMI Clear RTC RAM Clear RTC You do not need to clear the RTC when the system hangs due to pins 2-3. Clear RTC RAM...
... so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. M3A78-EMH HDMI CLRTC 12 23 Normal (Default) M3A78-EMH HDMI Clear RTC RAM Clear RTC You do not need to clear the RTC when the system hangs due to pins 2-3. Clear RTC RAM...