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...; Refer to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology. USB A55M-A/USB3 ASMedia 1042 - 2 x USB 3.0/2.0 ports at the back panel AMD® A55 FCH: - 6 x USB 2.0/1.1 ports (4 ports at the mid-board...FM2 A-series/Athlon™ Series Processors AMD® Turbo Core Technology 3.0 support Microsoft® DirectX® 11 support • Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List). • When you install a total memory of 4GB capacity or more, Windows®...
...; Refer to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology. USB A55M-A/USB3 ASMedia 1042 - 2 x USB 3.0/2.0 ports at the back panel AMD® A55 FCH: - 6 x USB 2.0/1.1 ports (4 ports at the mid-board...FM2 A-series/Athlon™ Series Processors AMD® Turbo Core Technology 3.0 support Microsoft® DirectX® 11 support • Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List). • When you install a total memory of 4GB capacity or more, Windows®...
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A55M-A Series specifications summary ASUS unique features ASUS USB 3.0 Boost (A55M-A/USB3 only) DIGI+ Power Control: Digital Power Design for the APU ASUS 3+2 Phase Power Design Network iControl ASUS EPU ASUS AI Suite II ASUS UEFI BIOS EZ Mode ASUS Anti-Surge Protection ASUS Fan Xpert ASUS CrashFree BIOS 3 ASUS Fanless Design: Stylish Heatsink Solution ASUS ESD ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All high-quality...
A55M-A Series specifications summary ASUS unique features ASUS USB 3.0 Boost (A55M-A/USB3 only) DIGI+ Power Control: Digital Power Design for the APU ASUS 3+2 Phase Power Design Network iControl ASUS EPU ASUS AI Suite II ASUS UEFI BIOS EZ Mode ASUS Anti-Surge Protection ASUS Fan Xpert ASUS CrashFree BIOS 3 ASUS Fanless Design: Stylish Heatsink Solution ASUS ESD ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All high-quality...
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... USB34 AMD® A55 SATA6G_5 SATA6G_6 SATA6G_3 SATA6G_4 SATA6G_1 SATA6G_2 32Mb BIOS CLRTC SPEAKER F_PANEL EATXPWR ASUS A55M-A Series motherboard User Guide 2 x Serial ATA 3.0 Gb/s cables 1 x I/O Shield User Guide Support DVD • A55M-A Series motherboards include A55M-A and A55M-A/USB3 models. xi Package contents Check your retailer. • The illustrated items above items is damaged or...
... USB34 AMD® A55 SATA6G_5 SATA6G_6 SATA6G_3 SATA6G_4 SATA6G_1 SATA6G_2 32Mb BIOS CLRTC SPEAKER F_PANEL EATXPWR ASUS A55M-A Series motherboard User Guide 2 x Serial ATA 3.0 Gb/s cables 1 x I/O Shield User Guide Support DVD • A55M-A Series motherboards include A55M-A and A55M-A/USB3 models. xi Package contents Check your retailer. • The illustrated items above items is damaged or...
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ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 allows you to an already impressive USB 3.0 transfer speed. USB 3.0 Boost (A55M-A/USB3 only) With USB 3.0 Boost technology, a USB device's transmission speed is significantly increased, adding to restore a corrupted BIOS file from a USB storage device that contains the BIOS file. ASUS A55M-A Series 1-3 ASUS software automatically accelerates data speeds for compatible USB 3.0 peripherals without the need for any user interaction. ASUS MyLogo2™ Turn your favorite photos into 256-color boot logos to personalize your system.
ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 allows you to an already impressive USB 3.0 transfer speed. USB 3.0 Boost (A55M-A/USB3 only) With USB 3.0 Boost technology, a USB device's transmission speed is significantly increased, adding to restore a corrupted BIOS file from a USB storage device that contains the BIOS file. ASUS A55M-A Series 1-3 ASUS software automatically accelerates data speeds for compatible USB 3.0 peripherals without the need for any user interaction. ASUS MyLogo2™ Turn your favorite photos into 256-color boot logos to personalize your system.
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... plugging in soft-off the ATX power supply and detach its power cord. 1.2 Before you proceed Take note of the onboard LED. A55M-A/USB3 SB_PWR ON OFF Standby Power Powered Off A55M-A/USB3 Onboard LED 1-4 Chapter 1: Product introduction The illustration below shows the location of the following precautions before you install or remove any...
... plugging in soft-off the ATX power supply and detach its power cord. 1.2 Before you proceed Take note of the onboard LED. A55M-A/USB3 SB_PWR ON OFF Standby Power Powered Off A55M-A/USB3 Onboard LED 1-4 Chapter 1: Product introduction The illustration below shows the location of the following precautions before you install or remove any...
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A55M-A/USB3 ASUS A55M-A Series 1-5 1.3 Motherboard overview 1.3.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.3.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. Place this side towards the rear of the chassis as indicated in the correct orientation. The edge with external ports goes to the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard.
A55M-A/USB3 ASUS A55M-A Series 1-5 1.3 Motherboard overview 1.3.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.3.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. Place this side towards the rear of the chassis as indicated in the correct orientation. The edge with external ports goes to the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard.
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1.3.3 Motherboard layout A55M-A Series motherboards include A55M-A and A55M-A/USB3 models. The package contents vary between models. The layout illustrations in this user guide are for A55MA/USB3 only. 1 2 3 4 5 18.8cm(7.4in) KBMS HDMI ATX12V CPU_FAN CHA_FAN DIGI +VRM DDR3 DIMM_A1 (64bit, ...DDR3 DIMM_B1 (64bit, 240-pin module) SOCKET FM2 DVI_VGA USB1112 23.6cm(9.3in) LAN1_USB12 ASM 1042 EATXPWR KB_USBWB AUDIO 2 A55M-A/USB3 PCIEX16 RTL 8111F Super I/O PCIEX1_1 BATTERY PCI1 SATA6G_5 SATA6G_6 AMD® A55 SATA6G_3 SATA6G_4 6 SB_PWR ALC 887 SPDIF_OUT AAFP SATA6G_1...
1.3.3 Motherboard layout A55M-A Series motherboards include A55M-A and A55M-A/USB3 models. The package contents vary between models. The layout illustrations in this user guide are for A55MA/USB3 only. 1 2 3 4 5 18.8cm(7.4in) KBMS HDMI ATX12V CPU_FAN CHA_FAN DIGI +VRM DDR3 DIMM_A1 (64bit, ...DDR3 DIMM_B1 (64bit, 240-pin module) SOCKET FM2 DVI_VGA USB1112 23.6cm(9.3in) LAN1_USB12 ASM 1042 EATXPWR KB_USBWB AUDIO 2 A55M-A/USB3 PCIEX16 RTL 8111F Super I/O PCIEX1_1 BATTERY PCI1 SATA6G_5 SATA6G_6 AMD® A55 SATA6G_3 SATA6G_4 6 SB_PWR ALC 887 SPDIF_OUT AAFP SATA6G_1...
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... connector (10-1 pin F_PANEL) 8. Clear RTC RAM (3-pin CLRTC) 10. USB 2.0 connectors (10-1 pin USB56, USB34) 11. USB device wake-up (3-pin USBPWF) 12. A55M-A/USB3 A55M-A/USB3 CPU socket FM2 ASUS A55M-A Series 1-7 Standby power LED (SB_PWR) Page 1-21 1-24 1-7 1-23 1-11 1-25 1-26 1-26 1-20 1-28 1-21 1-27 1-27 1-4 1.4 Accelerated Processing Unit (APU) This...
... connector (10-1 pin F_PANEL) 8. Clear RTC RAM (3-pin CLRTC) 10. USB 2.0 connectors (10-1 pin USB56, USB34) 11. USB device wake-up (3-pin USBPWF) 12. A55M-A/USB3 A55M-A/USB3 CPU socket FM2 ASUS A55M-A Series 1-7 Standby power LED (SB_PWR) Page 1-21 1-24 1-7 1-23 1-11 1-25 1-26 1-26 1-20 1-28 1-21 1-27 1-27 1-4 1.4 Accelerated Processing Unit (APU) This...
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The figure illustrates the location of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 A55M-A/USB3 Channel Channel A Channel B A55M-A/USB3 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS A55M-A Series 1-11 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
The figure illustrates the location of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 A55M-A/USB3 Channel Channel A Channel B A55M-A/USB3 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS A55M-A Series 1-11 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
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On Chip USB EHCI 1/2/3 - ASUS A55M-A Series 1-19 shared - - - Realtek LAN controller - shared - - - - - - IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 - - On Chip USB EHCI 1/2/3/4 shared ASM1042 USB3.0 controller - - PCIEx1_1 shared - - - - - - - HD audio shared - - - - - - - shared - - - - - - shared - - - - - shared - - - - - SATA controller - - - shared - - - - PCI1 slot - - - -
On Chip USB EHCI 1/2/3 - ASUS A55M-A Series 1-19 shared - - - Realtek LAN controller - shared - - - - - - IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 - - On Chip USB EHCI 1/2/3/4 shared ASM1042 USB3.0 controller - - PCIEx1_1 shared - - - - - - - HD audio shared - - - - - - - shared - - - - - - shared - - - - - shared - - - - - SATA controller - - - shared - - - - PCI1 slot - - - -
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... Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. For system failure due to pins 2-3. A55M-A/USB3 CLRTC 12 23 Normal (Default) Clear RTC A55M-A/USB3 Clear RTC RAM To erase the RTC RAM: 1. Keep the cap on CLRTC jumper default position. Move the jumper cap from pins...
... Time Clock (RTC) RAM in CMOS, which include system setup information such as system passwords. For system failure due to pins 2-3. A55M-A/USB3 CLRTC 12 23 Normal (Default) Clear RTC A55M-A/USB3 Clear RTC RAM To erase the RTC RAM: 1. Keep the cap on CLRTC jumper default position. Move the jumper cap from pins...
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otherwise, the system would not power up ASUS A55M-A Series 1-21 This feature requires an ATX power supply that can supply at least 1A on the keyboard. KB_USBPWB 12 23 A55M-A/USB3 +5V +5VSB (Default) A55M-A/USB3 Keyboard and USB device wake up . • The total current consumed must NOT exceed the... +5VSB to CPU, DRAM in slow refresh, power supply in low power mode) using the connected USB devices. 2. A55M-A/USB3 USBPWF 12 23 +5V +5VSB (Default) A55M-A/USB3 USB device wake up • The USB device wake-up from S1 sleep mode (CPU stopped, DRAM refreshed, system running...
otherwise, the system would not power up ASUS A55M-A Series 1-21 This feature requires an ATX power supply that can supply at least 1A on the keyboard. KB_USBPWB 12 23 A55M-A/USB3 +5V +5VSB (Default) A55M-A/USB3 Keyboard and USB device wake up . • The total current consumed must NOT exceed the... +5VSB to CPU, DRAM in slow refresh, power supply in low power mode) using the connected USB devices. 2. A55M-A/USB3 USBPWF 12 23 +5V +5VSB (Default) A55M-A/USB3 USB device wake up • The USB device wake-up from S1 sleep mode (CPU stopped, DRAM refreshed, system running...
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...This port is for USB 2.0/1.1 devices. 9. CPU_FAN CHA_FAN A55M-A/USB3 A55M-A/USB3 CPU fan connector DO NOT forget to connect the fan cables...IN CPU FAN PWR GND Rotation +12V GND ASUS A55M-A Series 1-23 This port is for connecting USB 3.0 devices. USB 2.0 ports 1 and 2. USB 3.0 ports 11 and 12 (A55M-A/USB3 only). Insufficient air flow inside the system may...compliant allowing playback of maximum 2A (24 W) fan power. • Only the CPU_FAN connector support the ASUS Fan Xpert feature. CPU and chassis fan connectors (4-pin CPU_FAN, and 3-pin CHA_FAN) Connect the fan cables...
...This port is for USB 2.0/1.1 devices. 9. CPU_FAN CHA_FAN A55M-A/USB3 A55M-A/USB3 CPU fan connector DO NOT forget to connect the fan cables...IN CPU FAN PWR GND Rotation +12V GND ASUS A55M-A Series 1-23 This port is for connecting USB 3.0 devices. USB 2.0 ports 1 and 2. USB 3.0 ports 11 and 12 (A55M-A/USB3 only). Insufficient air flow inside the system may...compliant allowing playback of maximum 2A (24 W) fan power. • Only the CPU_FAN connector support the ASUS Fan Xpert feature. CPU and chassis fan connectors (4-pin CPU_FAN, and 3-pin CHA_FAN) Connect the fan cables...
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... Wattage Calculator at least 15 A on +12 V and that the PSU has a minimum power rating of 300W power rating. ATX12V EATXPWR +12V DC +12V DC A55M-A/USB3 GND GND +3 Volts +12 Volts +12 Volts +5V Standby Power OK PIN 1 GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN... higher power output when configuring a system with 20-pin and 4-pin power plugs, ensure that the 20-pin power plug can provide at http://support.asus. The plugs from the power supply are uncertain about the minimum power supply requirement for your system, refer to use an ATX 12V Specification 2.0‑...
... Wattage Calculator at least 15 A on +12 V and that the PSU has a minimum power rating of 300W power rating. ATX12V EATXPWR +12V DC +12V DC A55M-A/USB3 GND GND +3 Volts +12 Volts +12 Volts +5V Standby Power OK PIN 1 GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN... higher power output when configuring a system with 20-pin and 4-pin power plugs, ensure that the 20-pin power plug can provide at http://support.asus. The plugs from the power supply are uncertain about the minimum power supply requirement for your system, refer to use an ATX 12V Specification 2.0‑...
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... RSATA_TXP4 GND GND RSATA_RXP3 RSATA_RXN3 GND RSATA_TXN3 RSATA_TXP3 GND A55M-A/USB3 SATA3G_1 SATA3G_2 GND RSATA_RXP1 RSATA_RXN1 GND RSATA_TXN1 RSATA_TXP1 GND GND RSATA_RXP2 RSATA_RXN2 GND RSATA_TXN2 RSATA_TXP2 GND A55M-A/USB3 SATA 3.0Gb/s connectors • These connectors are ...using Windows® XP SP3 or later version. • When using hot-plug and NCQ, set the type of the SATA connectors in the BIOS to [AHCI]. If you can create a RAID 0, RAID 1, or RAID 10 configuration through the onboard controller. ASUS A55M...
... RSATA_TXP4 GND GND RSATA_RXP3 RSATA_RXN3 GND RSATA_TXN3 RSATA_TXP3 GND A55M-A/USB3 SATA3G_1 SATA3G_2 GND RSATA_RXP1 RSATA_RXN1 GND RSATA_TXN1 RSATA_TXP1 GND GND RSATA_RXP2 RSATA_RXN2 GND RSATA_TXN2 RSATA_TXP2 GND A55M-A/USB3 SATA 3.0Gb/s connectors • These connectors are ...using Windows® XP SP3 or later version. • When using hot-plug and NCQ, set the type of the SATA connectors in the BIOS to [AHCI]. If you can create a RAID 0, RAID 1, or RAID 10 configuration through the onboard controller. ASUS A55M...
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Connect the chassis power LED cable to this connector. 4. Ground HWRST# (NC) A55M-A/USB3 PIN 1 +HD_LED RESET A55M-A/USB3 System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the chassis-mounted system warning speaker. Connect the ...LED (2-pin +IDELED) This 2-pin connector is read from or written to hear system beeps and warnings. +5V GND GND Speaker Out A55M-A/USB3 SPEAKER PIN 1 A55M-A/USB3 Speaker Out Connector 1-26 Chapter 1: Product introduction The system power LED lights up or flashes when data is for system reboot without turning ...
Connect the chassis power LED cable to this connector. 4. Ground HWRST# (NC) A55M-A/USB3 PIN 1 +HD_LED RESET A55M-A/USB3 System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the chassis-mounted system warning speaker. Connect the ...LED (2-pin +IDELED) This 2-pin connector is read from or written to hear system beeps and warnings. +5V GND GND Speaker Out A55M-A/USB3 SPEAKER PIN 1 A55M-A/USB3 Speaker Out Connector 1-26 Chapter 1: Product introduction The system power LED lights up or flashes when data is for system reboot without turning ...
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.... See section 2.5.5 Onboard Devices Configuration for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND A55M-A/USB3 SPDIF_OUT A55M-A/USB3 Digital audio connector The S/PDIF module is purchased separately. Front panel audio connector (10-1 pin AAFP) This connector...PORT1 R PORT2 R SENSE_SEND PORT2 L A55M-A/USB3 AAFP PIN 1 PIN 1 HD-audio-compliant Legacy AC'97 pin definition compliant definition A55M-A/USB3 Front panel audio connector • We recommend that supports either High Definition Audio or AC`97 audio standard. ASUS A55M-A Series 1-27
.... See section 2.5.5 Onboard Devices Configuration for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND A55M-A/USB3 SPDIF_OUT A55M-A/USB3 Digital audio connector The S/PDIF module is purchased separately. Front panel audio connector (10-1 pin AAFP) This connector...PORT1 R PORT2 R SENSE_SEND PORT2 L A55M-A/USB3 AAFP PIN 1 PIN 1 HD-audio-compliant Legacy AC'97 pin definition compliant definition A55M-A/USB3 Front panel audio connector • We recommend that supports either High Definition Audio or AC`97 audio standard. ASUS A55M-A Series 1-27
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... 2.0 specification that supports up to the USB connectors. USB56 USB34 USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P4USB_P4+ GND NC A55M-A/USB3 PIN 1 PIN 1 USB+5V USB_P5USB_P5+ GND USB+5V USB_P3USB_P3+ GND A55M-A/USB3 USB2.0 connectors Never connect a 1394 cable to 480Mbps connection speed. Doing so will damage the motherboard! The USB 2.0 module is...
... 2.0 specification that supports up to the USB connectors. USB56 USB34 USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P4USB_P4+ GND NC A55M-A/USB3 PIN 1 PIN 1 USB+5V USB_P5USB_P5+ GND USB+5V USB_P3USB_P3+ GND A55M-A/USB3 USB2.0 connectors Never connect a 1394 cable to 480Mbps connection speed. Doing so will damage the motherboard! The USB 2.0 module is...
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... cause system boot failure! Download the latest BIOS file from the ASUS website at www.asus.com. The utility automatically checks the devices for A55M-A USB3). • The BIOS file in the removable device into A55MA.CAP (for A55M-A) or A55MAUSB3.CAP (for the BIOS file. When found, the... utility reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. Recovering the BIOS To ...
... cause system boot failure! Download the latest BIOS file from the ASUS website at www.asus.com. The utility automatically checks the devices for A55M-A USB3). • The BIOS file in the removable device into A55MA.CAP (for A55M-A) or A55MAUSB3.CAP (for the BIOS file. When found, the... utility reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. Recovering the BIOS To ...