User Guide
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...#3 for the discrete GPUs that support Dual Graphics technology. • Only FM2+ APU can support up to www.asus.com for AMD® A-Series/Athlon series processors Supports CPU up to 4096x2160 resolution display via HDMI port. 1 x PCI Express 3.0/2.0 x16 slot* 1 x PCI Express 2.0... 1920x1200@60Hz - Supports HDMI with max. Supports D-Sub with 16GB or above items is subject to www.asus.com for the following items. Motherboard Cables Accessories Application DVD Documentation ASUS A78M-A motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O Shield Support DVD User Guide If any...
...#3 for the discrete GPUs that support Dual Graphics technology. • Only FM2+ APU can support up to www.asus.com for AMD® A-Series/Athlon series processors Supports CPU up to 4096x2160 resolution display via HDMI port. 1 x PCI Express 3.0/2.0 x16 slot* 1 x PCI Express 2.0... 1920x1200@60Hz - Supports HDMI with max. Supports D-Sub with 16GB or above items is subject to www.asus.com for the following items. Motherboard Cables Accessories Application DVD Documentation ASUS A78M-A motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O Shield Support DVD User Guide If any...
User Guide
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viii A78M-A specifications summary Back panel I/O ports Internal I/O ... 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 6 x SATA 6Gb/s connectors 1 x System panel connector 1 x Internal Speaker connector 1 x CPU fan connector (4-pin) 1 x S/PDIF Out connector 1 x Chassis fan connector (4-pin) 1 x High-definition front panel audio connector 1 x COM header...DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information Windows® 8.1 / ...
viii A78M-A specifications summary Back panel I/O ports Internal I/O ... 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 6 x SATA 6Gb/s connectors 1 x System panel connector 1 x Internal Speaker connector 1 x CPU fan connector (4-pin) 1 x S/PDIF Out connector 1 x Chassis fan connector (4-pin) 1 x High-definition front panel audio connector 1 x COM header...DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information Windows® 8.1 / ...
User Guide
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... AAFP) 16. Keyboard wake-up (3-pin USBPWF) 12. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! A78M-A A78M-A CPU socket FM2+ 1-4 Chapter 1: Product introduction Standby power LED (SB_PWR) 7. Digital audio connector (4-1 pin SPDIF_OUT) 15. The APU fits in only one correct orientation. ...) 14. USB 3.0 connector (20-1 pin USB3_34) 13. AMD FM2+ socket 4. USB 2.0 connectors (10-1 pin USB34, USB56) 11. 1.2.4 Layout contents Connectors/Jumpers/Slots/LED 1. CPU and chassis fan connectors (4-pin CPU_FAN, and 4-pin CHA_FAN) 2.
... AAFP) 16. Keyboard wake-up (3-pin USBPWF) 12. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! A78M-A A78M-A CPU socket FM2+ 1-4 Chapter 1: Product introduction Standby power LED (SB_PWR) 7. Digital audio connector (4-1 pin SPDIF_OUT) 15. The APU fits in only one correct orientation. ...) 14. USB 3.0 connector (20-1 pin USB3_34) 13. AMD FM2+ socket 4. USB 2.0 connectors (10-1 pin USB34, USB56) 11. 1.2.4 Layout contents Connectors/Jumpers/Slots/LED 1. CPU and chassis fan connectors (4-pin CPU_FAN, and 4-pin CHA_FAN) 2.
User Guide
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...CMOS RTC RAM data. Clear RTC RAM (3-pin CLRTC) This jumper allows you to default values. 1-12 Chapter 1: Product introduction A78M-A CLRTC 12 23 Normal (Default) A78M-A Clear RTC RAM Clear RTC To erase the RTC RAM: 1. Hold down and reboot the system, then the BIOS automatically ...when clearing the RTC RAM, never remove the cap on pins 2-3 for about 5-10 seconds, then move the jumper again to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down the key during the boot process and enter BIOS setup to pins 1-2. 3. After clearing the CMOS, reinstall the ...
...CMOS RTC RAM data. Clear RTC RAM (3-pin CLRTC) This jumper allows you to default values. 1-12 Chapter 1: Product introduction A78M-A CLRTC 12 23 Normal (Default) A78M-A Clear RTC RAM Clear RTC To erase the RTC RAM: 1. Hold down and reboot the system, then the BIOS automatically ...when clearing the RTC RAM, never remove the cap on pins 2-3 for about 5-10 seconds, then move the jumper again to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down the key during the boot process and enter BIOS setup to pins 1-2. 3. After clearing the CMOS, reinstall the ...
User Guide
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...up 3. Set to +5VSB to enable or disable the keyboard wake-up the computer by pressing a key on the +5VSB lead for each USB port; ASUS A78M-A 1-13 Keyboard wake-up (3-pin KB_USBPWB) This jumper allows you can wake up feature. USB device wake-up (3-pin USBPWF) Set this jumper to pins... 2-3 (+5VSB), you to wake up from S1 sleep mode (CPU stopped, DRAM refreshed, system running in sleep mode. A78M-A USBPWF 12 23 +5V +5VSB (Default) A78M-A USB device wake up • The USB device wake-up the computer from S3 and S4 sleep modes...
...up 3. Set to +5VSB to enable or disable the keyboard wake-up the computer by pressing a key on the +5VSB lead for each USB port; ASUS A78M-A 1-13 Keyboard wake-up (3-pin KB_USBPWB) This jumper allows you can wake up feature. USB device wake-up (3-pin USBPWF) Set this jumper to pins... 2-3 (+5VSB), you to wake up from S1 sleep mode (CPU stopped, DRAM refreshed, system running in sleep mode. A78M-A USBPWF 12 23 +5V +5VSB (Default) A78M-A USB device wake up • The USB device wake-up the computer from S3 and S4 sleep modes...
User Guide
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... 1. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND A78M-A CHA_FAN CHA FAN PWM CHA FAN IN CHA FAN PWR GND A78M-A Fan connectors DO NOT forget to connect the fan cables to the fan connectors on the... the black wire of each cable matches the ground pin of maximum 2A (24W) fan power. • The 4-pin CPU_FAN and chassis fan support the ASUS Fan Xpert feature. 1-16 Chapter 1: Product introduction
... 1. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND A78M-A CHA_FAN CHA FAN PWM CHA FAN IN CHA FAN PWR GND A78M-A Fan connectors DO NOT forget to connect the fan cables to the fan connectors on the... the black wire of each cable matches the ground pin of maximum 2A (24W) fan power. • The 4-pin CPU_FAN and chassis fan support the ASUS Fan Xpert feature. 1-16 Chapter 1: Product introduction
User Guide
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The figure below shows an example of the BIOS setup program Displays the CPU temperature, CPU Voltage output, DRAM information and CPU/Chassis fan speed Exits the BIOS setup program without saving the changes, saves the changes and resets the system, or enters the ... for the detailed configurations. Selects the display language of the Advanced Mode. To access the EZ Mode, click Exit, then select ASUS EZ Mode or press F7. ASUS A78M-A 2-7 The default screen for experienced end-users to configure the BIOS settings. Advanced Mode The Advanced Mode provides advanced options for...
The figure below shows an example of the BIOS setup program Displays the CPU temperature, CPU Voltage output, DRAM information and CPU/Chassis fan speed Exits the BIOS setup program without saving the changes, saves the changes and resets the system, or enters the ... for the detailed configurations. Selects the display language of the Advanced Mode. To access the EZ Mode, click Exit, then select ASUS EZ Mode or press F7. ASUS A78M-A 2-7 The default screen for experienced end-users to configure the BIOS settings. Advanced Mode The Advanced Mode provides advanced options for...
User Guide
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2.5 Ai Tweaker menu The Ai Tweaker menu items allow you installed on the motherboard. The configuration options for this section vary depending on the CPU and DIMM model you to configure overclocking-related items. Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to display the following items: 2-12 Chapter 2: BIOS information Scroll down to malfunction.
2.5 Ai Tweaker menu The Ai Tweaker menu items allow you installed on the motherboard. The configuration options for this section vary depending on the CPU and DIMM model you to configure overclocking-related items. Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to display the following items: 2-12 Chapter 2: BIOS information Scroll down to malfunction.
User Guide
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... the Ai Overclock Tuner item to adjust the value. Use the and keys to achieve the desired CPU internal frequency. Configuration options: [Auto] [Light Power Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode] ASUS A78M-A 2-13 Target DRAM Speed : xxxxMHz Displays the current DRAM speed. 2.5.1 Ai Overclock Tuner [Auto] Allows you...
... the Ai Overclock Tuner item to adjust the value. Use the and keys to achieve the desired CPU internal frequency. Configuration options: [Auto] [Light Power Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode] ASUS A78M-A 2-13 Target DRAM Speed : xxxxMHz Displays the current DRAM speed. 2.5.1 Ai Overclock Tuner [Auto] Allows you...
User Guide
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... APU Voltage [Offset Mode] [Offset Mode] To offset the voltage by a positive or negative value. Setting a high voltage may damage the CPU permanently, and setting a low voltage may need better cooling system to 1.22V with a 0.00625V interval. The values range from 0.00625V to ...0.38750V with a 0.150V interval. 2.5.9 SB 1.1V Voltage [Auto] Allows you to the CPU documentation before setting the CPU voltage. CPU Offset Mode Sign [+] [+] To offset the voltage by a positive value. [-] To offset the voltage by a negative value. VDDNB ...
... APU Voltage [Offset Mode] [Offset Mode] To offset the voltage by a positive or negative value. Setting a high voltage may damage the CPU permanently, and setting a low voltage may need better cooling system to 1.22V with a 0.00625V interval. The values range from 0.00625V to ...0.38750V with a 0.150V interval. 2.5.9 SB 1.1V Voltage [Auto] Allows you to the CPU documentation before setting the CPU voltage. CPU Offset Mode Sign [+] [+] To offset the voltage by a positive value. [-] To offset the voltage by a negative value. VDDNB ...
User Guide
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... gets faster transient response. Use the and keys to Extreme and Manual Adjustment. The values range from the following percentages to select the CPU/NB Load-Line Calibration mode. ASUS A78M-A 2-15 A higher value brings a wider total power range and extends the overclocking frequency range simultaneously. DO NOT remove the thermal module when...
... gets faster transient response. Use the and keys to Extreme and Manual Adjustment. The values range from the following percentages to select the CPU/NB Load-Line Calibration mode. ASUS A78M-A 2-15 A higher value brings a wider total power range and extends the overclocking frequency range simultaneously. DO NOT remove the thermal module when...
User Guide
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...items. Incorrect field values can cause the system to malfunction. 2.6.1 CPU Configuration The items in submenu may be monitored. 2.6 Advanced menu The Advanced menu items allow you to the CPU you installed. Do not remove the thermal module while changing the ...DIGI+VRM related parameters. Configuration options: [Enabled] [Disabled] NX Mode [Enabled] Enables or disables the No-execute page protection function. CPU Power Duty Control [T.Probe] [T.Probe] Maintains the VRM thermal balance. [Extreme] Maintains the VRM current balance. Configuration options: [Disabled] [Enabled...
...items. Incorrect field values can cause the system to malfunction. 2.6.1 CPU Configuration The items in submenu may be monitored. 2.6 Advanced menu The Advanced menu items allow you to the CPU you installed. Do not remove the thermal module while changing the ...DIGI+VRM related parameters. Configuration options: [Enabled] [Disabled] NX Mode [Enabled] Enables or disables the No-execute page protection function. CPU Power Duty Control [T.Probe] [T.Probe] Maintains the VRM thermal balance. [Extreme] Maintains the VRM current balance. Configuration options: [Disabled] [Enabled...
User Guide
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...Use the and keys to 75ºC. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. The values range from 20ºC to adjust the upper limit of the CPU temperature. ASUS A78M-A 2-23 Select Ignore if you do not wish ...to assign detailed fan speed control parameters. Duty Cycle(%) [100] Use the and keys to 100%. When the CPU temperature is not connected to display the detected temperatures. 2.7.2 CPU / Chassis Fan Speed [xxxx...
...Use the and keys to 75ºC. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. The values range from 20ºC to adjust the upper limit of the CPU temperature. ASUS A78M-A 2-23 Select Ignore if you do not wish ...to assign detailed fan speed control parameters. Duty Cycle(%) [100] Use the and keys to 100%. When the CPU temperature is not connected to display the detected temperatures. 2.7.2 CPU / Chassis Fan Speed [xxxx...
User Guide
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... the lower limit of the chassis temperature. When the chassis temperature is under 40ºC, the chassis fan will operate at the minimum duty cycle. 2.7.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Enables the Chassis1 Q-Fan...
... the lower limit of the chassis temperature. When the chassis temperature is under 40ºC, the chassis fan will operate at the minimum duty cycle. 2.7.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Enables the Chassis1 Q-Fan...
User Guide
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...if no profile is created. Key in the BIOS Flash. Configuration options: [DIMM_A1] [DIMM_B1] [DIMM_A2] [DIMM_B2] 2.9.3 ASUS O.C. For more details, see section 2.1.2 ASUS EZ Flash 2. 2.9.2 ASUS SPD Information DIMM Slot # [DIMM_A1] Displays the Serial Presence Detect (SPD) information of the setup profile. Save to Profile...to store or load multiple BIOS settings. Profile This item allows you update the BIOS file only coming from the same memory/ CPU configuration and BIOS version. 2-32 Chapter 2: BIOS information Label Allows you to load the previous BIOS settings saved in a ...
...if no profile is created. Key in the BIOS Flash. Configuration options: [DIMM_A1] [DIMM_B1] [DIMM_A2] [DIMM_B2] 2.9.3 ASUS O.C. For more details, see section 2.1.2 ASUS EZ Flash 2. 2.9.2 ASUS SPD Information DIMM Slot # [DIMM_A1] Displays the Serial Presence Detect (SPD) information of the setup profile. Save to Profile...to store or load multiple BIOS settings. Profile This item allows you update the BIOS file only coming from the same memory/ CPU configuration and BIOS version. 2-32 Chapter 2: BIOS information Label Allows you to load the previous BIOS settings saved in a ...